FR2908656A1 - Cosmetic composition, useful for make-up of keratinous matter, comprises multilayer interference pigment, coloring agent, reflective pigment and diffractive pigment - Google Patents

Abstract

Cosmetic composition comprising a multilayer interference pigment, a coloring agent sensitive to an external stimulus, a reflective pigment and a diffractive pigment, where the coverage of the composition is >= 25, preferably 30, and the multilayer interference pigment being in a content conferring to the composition a color deviation (delta E) of >= 5 between the color in the mass and color after application, in a medium. Independent claims are included for: (1) a non-powder cosmetic composition comprising 7-20 wt.% of multi-layer interference pigments, 0.1-10 wt.% of coloring agent sensitive to at least one exterior stimulus, reflective pigment or diffractive pigment, in a medium; (2) a powder cosmetic composition comprising 40-95 wt.% of the multilayer pigment, 0.1-60 wt.% of coloring agent sensitive to at least one exterior stimulus, reflective pigment or diffractive pigment, in a medium; and (3) a set of packaging comprising the composition and a user manual on the color composition after application on the keratin materials.

Description

The present invention relates to a cosmetic solid product intended for

  make-up of the skin, lips or hair. BACKGROUND It is known to introduce diffusing pigments into makeup compositions to produce colors by a phenomenon of absorption of light by specific chromophores. To these diffusing pigments, which are necessary to benefit from a continuous and sufficiently covering colored background, may be added effect particles (s) to create, for example, points of gloss or impart a pearlescent appearance. However, the intensity of the color produced by these compositions may be insufficient to lead to a completely satisfactory result. Multilayer interference pigments, comprising a stack of layers whose refractive indices and thicknesses are suitably selected to generate a color by an interference phenomenon, make it possible to produce a greater color intensity than the diffusing pigments above. . To the knowledge of the inventor, in commercially available compositions, these multilayer interference pigments are employed at a mass concentration of not more than 5%. It is moreover known by CHRYSALIDE brand eyeshadows from LANCAME to confer both coverage and color intensity by means of a make-up involving a first act of depositing on the keratin materials a base layer of black color containing a diffusing pigment providing coverage and then depositing by a second gesture on this base layer a composition providing color through a multilayer interference pigment. Without the base layer, the covering layer is almost invisible because it is not covering and without color. The use of two successive applications complicates makeup and makes packaging more expensive. SUMMARY There is a need to benefit from compositions capable of providing coverage and of producing one or more relatively saturated colors, in order to be able to obtain in a single gesture a makeup that is both covering and colored. Furthermore, it is desirable to benefit from cosmetic compositions intended for the makeup of keratin materials which present new effects that are likely to attract consumers, without these new effects occurring to the detriment of the quality of the makeup obtained. The invention aims in particular to meet all or part of the needs identified above. The subject of the invention is, according to one of its aspects, a solid product, comprising at least: a first block of a first cosmetic composition containing, in a cosmetically acceptable medium, at least one first multilayer interference pigment, a second block of a second cosmetic composition, containing in a cosmetically acceptable medium at least a second multilayer interference pigment different from the first, at least one of the first and second compositions being capable of presenting a first color in the mass and a second color after application, the first and second colors differing by a difference AE greater than or equal to 2, better 5. The color after application is determined for the purposes of calculating AE after spreading the composition on a contrast card, such as for measuring coverage. Each of the first and second compositions may be capable of having a first color in the mass and a second color, after application to keratin materials, the first and second colors of each composition differing by a difference AE of greater than or equal to 5. The first and second blocks may extend the full length of a stick (sometimes called grape or stick) or the entire thickness of the product when it is poured or compacted in a cup. The first and second blocks may be concentric or otherwise arranged. According to the compositions, the gap AE may be between, for example, 5 and 30. The coverage of one of the compositions may be greater than 30, for example between 40 and 70. The coverage of each composition may be greater or equal to 30, better 40. In multilayer interference pigments, the production of color by the interference phenomenon is in competition with the production of color by the phenomenon of absorption by the surface layer of the pigment. Thus, when the pigment concentration increases sufficiently, the color produced by the interference phenomenon decreases in favor of that produced by absorption. The invention, by exploiting this property, makes it possible to observe a color variation of at least one of the compositions on application, which gives a playful aspect to the use. The invention also offers new possibilities in the marketing of cosmetic compositions, allowing to play at the packaging level on this color variation before and after application. The invention offers a way to surprise the consumer by providing the possibility of revealing several colors to the application, in some cases. The mass content of multilayer interference pigment in at least one of the compositions can range from 7 to 20%, more preferably 8 to 15%. The color of at least one of the compositions in the mass may be white. All blocks can be white with a whiteness index greater than or equal to 40 for example. At least one of the compositions may have no other coloring agent than the multilayer interference pigment or pigments. This can be the case for all the compositions of the product. The multilayer interference pigment may comprise at least four layers, for example. The multilayer interference pigment may comprise a substrate made of a more or less rough material, which may make it possible to impart more or less gloss to the composition. The substrate is for example selected from natural, relatively rough mica, synthetic mica, alumina, silica or glass or metal for a smoother surface. The compositions of the product may comprise two respective multilayer interference pigments having layers consisting of the same materials. At least one layer of a pigment of one of the compositions may have a different thickness than a corresponding layer of a pigment of the other composition, so as to produce different colors. The invention further relates, in another of its aspects, a packaging assembly comprising: - a product as defined above, - a means for informing the user on the color of the product compositions after application. It may be for example an ink or varnish printing, a thin layer of composition or a molding or overmolding of a material incorporating the multilayer interference or pigments. Solid product For the purposes of the present invention, the term "solid product" is intended to include a product having the property of being devoid of the ability to flow under the action of its own weight, under normal storage conditions. A solid product may be a product whose viscosity is not measurable. The solid product may, where appropriate, have a pasty appearance at room temperature (25 ° C.). At least one of the blocks may have a melting point or a thermal transition temperature (for example a softening point) greater than 25 ° C., in particular ranging from 25 to 85 ° C., or even from 30 ° to 60 ° C., and in particular from 30 to 45 ° C. The hardness of at least one of the blocks of composition may vary, for example, from 0.001 to 0.5 MPa, in particular from 0.005 to 0.4 MPa. The hardness of a block can be determined by measuring the compressive force at 20 C using the texturometer sold under the name TA-XT2i by the company RHEO, equipped with a stainless steel cylinder of a 2 mm diameter moving at the measuring speed of 0.1 mm / s, and penetrating into the composition of this block at a penetration depth of 0.3 mm. The hardness value is the maximum measured compressive force divided by the surface of the texturometer roll in contact with the composition. In the particular case of lipsticks, the hardness can also be measured by the so-called butter cutter method, which consists in cutting a lipstick stick of 8.1 mm in diameter and measuring the hardness to 20 C, using a DFGHS 2 dynamometer from the company Indelco-Chatillon moving at a speed of 100 mm / minute. The hardness measured is expressed as the shear force (expressed in gramforce) required to cut the stick under these conditions. According to this method, the hardness of a solid product according to the invention ranges, for example, from 50 to 300 g, for example from 100 to 250 g and for example from 150 to 230 g. Measurement of the Coverage of a Composition Block a) For the compacted powdery solid compositions, the composition is applied to matt black and matt white contrast cards, for example LENETA Form WP1 for the matte black card and Leneta lA for the matt white card, covered with a transparent tape, slightly rough, for example brand BLENDERM 3M company and reference 15025, glued by the adhesive side on the contrast cards.

  The composition is deposited on the adhesive tape so as to obtain a homogeneous deposition of 0.5 mg / cm 2 0.02 mg / cm 2. It is possible to use for depositing a sponge loaded with the composition and mounted on a disintegrating device that makes predefined movements with the sponge. The sponge is for example a disposable sponge type LANCAME Photogenic, used on the pink side. For a stick composition, it is melted, for example at 90 ° C., then spread in the liquid state on matt black and matt white contrast cards, for example of the same reference numbers as above, not covered. from BLENDERM. The spreading bar is maintained at the same temperature as the composition, so as to avoid thermal shock. The stick compositions for application to the lips are deposited once melted with a thickness of 50 m. The other compositions are spread with a thickness of 150 m. Measurements and Calculations Reflectance spectra are acquired using a MINOLTA 3700-d spectrocolorimeter (diffuse measurement geometry and D65 / 10 observation, specular component excluded mode, small aperture (CREISS)) on the black and white backgrounds , the contrast cards being optionally covered with BLENDERM as indicated above. The spectra are expressed in colorimetric coordinates in the space CIELab76 within the meaning of the International Commission on Illumination according to Recommendation 15: 2004. The contrast ratio, or coverage, is calculated by averaging Y on a black background, divided by the average value of Y on a white background, multiplied by 100. Measuring the color of a composition of the product in the mass color in the mass is measured after filling a container having a sufficiently large depth to be able to consider an infinite product thickness in view of the measurement, for example a depth of 3 mm or more. The coordinates L *, a * and b * are measured with a spectrocolorimeter, for example the MINOLTA CM-2002 mark (D65 / 10, excluding specular component mode). Measuring the color of a composition of the product after application The color is measured on the dark background of the contrast map, the composition being spread as for the measurement of the coverage as detailed above. The difference ΔE is calculated as follows: [(a * in the mass ùa * after application) 2 + (b * in the mass ùb * after application) 2 + (L * in the mass ùL * after application) z Uz 5 Whiteness Index Measurement The Whiteness Index is calculated from the infinite-thickness color measurements and ASTM E313-05. Multilayer interference peel The term "multilayer interference pigment" denotes a pigment capable of producing a color by a phenomenon of interference between the light rays reflected by a plurality of superimposed layers of different refractive indices, in particular a succession of layers of high and low refractive indices. All multilayer interference pigments can be envisaged. The color produced by the multilayer interference pigment may be any, for example being of dominant wavelength between 580 and 650 nm or not. The composition may comprise a single multilayer interference pigment or several multilayer interference pigments having different dominant wavelengths. The multi-layer interference pigment may comprise a substrate (also called a core or core) covered on at least one face with one or more layers of materials and thicknesses chosen so that a color is produced by interference. Layers of the interference pigment may or may not surround the substrate, which may have a flattened shape or not. The substrate may comprise natural mica, synthetic mica, glass, alumina, silica, or any metal, alloy or metal oxide. The nature of the substrate may be chosen according to the desired gloss. For example, for a very bright rendering, a substrate of glass or metal may be preferred. The interference pigment may comprise more than four different refractive index layers. The particle size of the multilayer interference pigment, given by the average particle size at half of the population, also called D50, is, for example, from 1 μm to 2000 μm, better still from 5 μm to 2000 μm. The proportion of multilayer interference pigment is for example greater than 7% and ranges, for example, from 7 to 20% for a non-pulverulent, liquid or cast composition, for example as a stick and from 40 to 95% for a powdery composition, free or compacted. The coverage of the composition may be due essentially to the content of multilayer interference pigment. Alternatively, at least one diffusing pigment and / or fillers may provide coverage. Nacres are examples of multilayer interference pigments that may be suitable. Nacres By nacre, it is necessary to include colored particles of any shape, iridescent or not, especially produced by certain shellfish in their shell or else synthesized and which exhibit a color effect by optical interference. Examples of pearlescent agents that may be mentioned are pearlescent pigments such as iron oxide-coated titanium mica, bismuth oxychloride-coated mica, titanium mica coated with chromium oxide, titanium mica coated with a organic dye especially as well as pearlescent pigments based on bismuth oxychloride. It may also be mica particles on the surface of which are superimposed at least two successive layers of metal oxides and / or organic dyestuffs. The nacres may have a yellow, pink, red, bronze, orange, brown, gold and / or copper color or reflection. As an illustration of nacres that can be introduced as a multilayer interference pigment, mention may be made of the gold-colored nacres sold especially by ENGELHARD under the name of Brillant gold 212G (Timica), Gold 222C (Cloisonne), Sparkle gold ( Timica), Gold 4504 (Chromalite) and Monarch Gold 233X (Cloisonne); bronze nacres sold especially by the company Merck under the names Bronze Fine (17384) (Colorona) and Bronze (17353) (Colorona) and by the company Engelhard under the name Super Bronze 2908656 9 (Cloisonne); orange nacres sold especially by the company Engelhard under the name Orange 363C (Cloisonne) and Orange MCR 101 (Cosmica) and by the company Merck under the name Passion Orange (Colorona) and Matte Orange (17449) (Microna); the nacres of brown hue sold especially by ENGELHARD under the name Nuantique copper 340XB (Cloisonne) and Brown CL4509 (Chromalite); nacres with a copper sheen sold especially by Engelhard under the name Copper 340A (Timica); the nacres with a red glint sold especially by MERCK under the name Sienna fine (17386) (Colorona); nacres with a yellow glint sold especially by the company ENGELHARD under the name Yellow (4502) (Chromalite); the red-colored pearlescent agents with a gold glint sold especially by ENGELHARD under the name Sunstone G012 (Gemtone); pink nacres sold especially by Engelhard under the name Tan opal G005 (Gemtone); black pearls with a gold glint sold especially by ENGELHARD under the name Nu antique bronze 240 AB (Timica), blue pearls especially marketed by MERCK under the name Matte blue (17433) (Microna), white pearls to silver glints sold especially by the company Merck under the name Xirona Silver and the golden-green orange-colored pearlescent nacres marketed by Merck under the name Indian Summer 20 (Xirona) and their blends. Multilayer interference pigments having magnetic properties are, for example, those sold under the trade names COLORONA BLACKSTAR BLUE, COLORONA BLACKSTAR GREEN, COLORONA BLACKSTAR GOLD, COLORONA BLACKSTAR RED, CLOISONNE NU ANTIQUE 25 SUPER GREEN, MICRONA MATTE BLACK (17437), MICA BLACK ( 17260), COLORONA PATINA SILVER (17289) and COLORONA PATINA GOLD (117288) from MERCK or FLAMENCO TWILIGHT RED, FLAMENCO 25 TWILIGHT GREEN, FLAMENCO TWILIGHT GOLD, TWILIGHT BLUE FLAMENCO, TIMICA NU ANTIQUE SILVER 110 AB, TIMICA NU ANTIQUE GOLD 212 30 GB, TIMICA NU-ANTIQUE COPPER 340 AB, ANCIENT TIMICA NU BRONZE 240 AB, ANCIENT NUCLEO CLOISONNE GREEN 828 CB, ANTIQUE CLOISONNE NU BLUE 626 CB, GEMTONE MOONSTONE G 004, NARROW ANTIQUE CLOISONNE RED 424 CB, 2908656 10 CHROMA- LITE BLACK (4498), NARROW RED ANTIQUE CLOISONNE FLAMBE (code 440 XB), ANCIENT BRONZE NARROW CLOISONNE (240 XB), ANTIQUE GOLD CLOISONNE GOLD (222 CB) and ANTIQUE CLOISONNE COPPER (340 XB) of the company Engelhard. The multilayer interference pigment may be further selected from interferential reflective particles. Interferential Reflective Particles These particles may be chosen from particles with a synthetic substrate 10 at least partially coated with at least one layer of at least one metal oxide, chosen, for example, from titanium oxides, in particular TiO 2, in particular Fe 2 O 3, tin, chromium, barium sulfate and the following materials: MgF 2, CrF 3, ZnS, ZnSe, SiO 2, Al 2 O 3, MgO, Y 2 O 3, SeO 3, SiO, HfO 2, ZrO 2, CeO 2, Nb 2 O 5, Ta 2 O 5, MoS 2 and mixtures thereof or alloys. Examples of such particles include, for example, particles comprising a synthetic mica substrate coated with titanium dioxide, or coated glass particles of either brown iron oxide, titanium oxide, titanium dioxide, tin oxide or a mixture thereof such as those sold under the trade name REFLECKS by ENGELHARD. The multilayer interference pigment may also be a goniochromatic pigment. Goniochromatic Pigment For the purposes of the present invention, the term "goniochromatic pigment" denotes a pigment which makes it possible, when the composition is spread on a support, to obtain a color path in the plane a * b * of the CIE 1976 color space. corresponds to a variation Dh of the hue angle h of at least 20 when the angle of observation is varied with respect to the normal between 0 and 80, for an angle of incidence of the light of 45 . The color path can be measured, for example, by means of an INSTRUMENT SYSTEMS brand spectrogoniorflectometer and a GON 360 GONIOMETER reference, after the composition has been spread in a fluid state with a thickness of 300 m by means of FIG. an automatic spreader on an ERICHSEN brand contrast card and Typ 24/5 reference, the measurement being made on the black background of the card. The goniochromatic pigment may be selected from, for example, interfering multilayer structures and liquid crystal coloring agents. In the case of a multilayer structure, this may comprise for example at least two layers, each layer being made for example from at least one material selected from the group consisting of the following materials: MgF2, CeF3, ZnS , ZnSe, Si, SiO2, Ge, Te, Fe2O3, Pt, Va, Al2O3, MgO, Y2O3, S2O3, SiO, HfO2, ZrO2, CeO2, Nb2O5, Ta2O5, TiO2, Ag, Al, Au, Cu, Rb, Ti, Ta, W, Zn, MoSz, cryolite, alloys, polymers and their combinations. The multilayer structure may or may not have, with respect to a central layer, a symmetry at the chemical nature of the stacked layers. Depending on the thickness and nature of the different layers, different effects are obtained. Examples of symmetrical interferential multilayer structures are for example the following structures: Fe2O3 / SiO2 / Fe2O3 / SiO2 / Fe2O3, a pigment having this structure being marketed under the name SICOPEARL by the company BASF; MoS2 / SiO2 / mica-oxide / SiO2 / MoS2; Fe2O3 / SiO2 / mica-oxide / SiO2 / Fe2O3; TiO2 / SiO2 / TiO2 and TiO2 / Al2O3 / TiO2, pigments having these structures being marketed under the name XIRONA by the company Merck (Darmstadt). The liquid crystal coloring agents comprise, for example, silicones or cellulose ethers onto which mesomorphic groups are grafted. As liquid crystal goniochromatic particles, it is possible to use, for example, those sold by the company CHENIX as well as those marketed under the name HELICONE HC by the company WACKER. As goniochromatic pigment, it is also possible to use certain nacres, pigments having effects on a synthetic substrate, in particular an alumina-like substrate, silica, borosilicate, iron oxide, aluminum, or interference flakes derived from a polyterephthalate film. The material may further comprise dispersed goniochromatic fibers. Such fibers may have a length of less than 80 m for example. Cosmetically acceptable medium Physiologically acceptable medium means a non-toxic medium that can be applied to the skin or the lips of human beings. The cosmetically acceptable medium is generally adapted to the nature of the support on which the composition is to be applied and to the appearance under which the composition is intended to be packaged, stick-shaped or cast or compacted in a cup. Paste compound The medium may contain a pasty compound chosen, for example, from: - polymeric or non-polymeric silicone compounds, - fluorinated or non-polymeric compounds, - vinyl polymers, in particular: - olefin homopolymers - olefin copolymers Homopolymers and copolymers of hydrogenated dienes; linear or branched oligomers, homopolymers or copolymers of alkyl (meth) acrylates preferably having a C 6 -C 30 alkyl group; homo and copolymeric oligomers of vinyl esters having 20 to 20 carbon atoms; C 8 -C 30 alkyl groups - homo- and copolymer oligomers of vinyl ethers having C 8 -C 30 alkyl groups, - liposoluble polyethers resulting from the polyetherification between one or more C 2 -C 100 diols, preferably C 2 -C 50, esters, and mixtures thereof. The pasty compound is preferably a polymer, in particular a hydrocarbon polymer. Silicone and / or Fluorinated Paste Compounds An example of a silicone and fluorinated pasty compound is polymethyl trifluoropropyl methylalkyl dimethylsiloxane, manufactured under the name X22-1088 by the company Shin Etsu. When the pasty compound is a silicone and / or fluorinated polymer, the composition advantageously comprises a compatibilizing agent such as short chain esters such as isodecyl neopentanoate. Polyether Paste Compounds Of the fat-soluble polyethers, ethylene-oxide and / or propylene oxide copolymers are particularly preferred with C 6 -C 30 long-chain alkylene oxides, more preferably such as the weight ratio of ethylene oxide and / or propylene oxide with alkylene oxide in the copolymer is from 5:95 to 70:30. In this family, mention will in particular be made of copolymers such as long-chain alkylene oxides are arranged in blocks having an average molecular weight of 1,000 to 10,000, for example a polyoxyethylene / polydodecyl glycol block copolymer such as dodecanediol ethers (22 mol ) and polyethylene glycol (45 EO) sold under the trademark ELFACOS ST9 by Akzo Nobel. Among the esters, the esters of an oligomeric glycerol, in particular the esters of diglycerol, in particular the condensates of adipic acid and of glycerol, for which part of the hydroxyl groups of the glycerols have reacted with a mixture of fatty acids such as stearic acid, capric acid, stearic acid and isostearic acid and 12-hydroxystearic acid, such as those marketed under the trademark Softisan 20 649 by the company Sasol arachidyl propionate sold under the trademark Waxenol 801 by Alzo; phytosterol esters; non-crosslinked polyesters resulting from the polycondensation between a linear or branched C 8 -C 50 diacid or polycarboxylic acid and a diol or a C2-C50 polyol; the aliphatic ester esters resulting from the esterification of an aliphatic hydroxycarboxylic acid ester with an aliphatic carboxylic acid; and their mixtures. The aliphatic carboxylic acid comprises from 4 to 30 and preferably from 8 to 30 carbon atoms. It is preferably selected from hexanoic acid, heptanoic acid, octanoic acid, 2-ethyl hexanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, acid tridecanoic acid, tetradecanoic acid, pentadecanoic acid, hexadecanoic acid, hexydecanoic acid, heptadecanoic acid, octadecanoic acid, isostearic acid, nonadecanoic acid, eicosanoic acid, isoarachidic acid, octyldodecanoic acid, henicosanoic acid, docosanoic acid, and mixtures thereof. The aliphatic carboxylic acid is preferably branched. The aliphatic hydroxy carboxylic acid ester is advantageously derived from a hydroxylated aliphatic carboxylic acid having from 2 to 40 carbon atoms, preferably from 10 to 34 carbon atoms and better still from 12 to 28 carbon atoms, and from 1 to to 20 hydroxyl groups, preferably 1 to 10 hydroxyl groups and more preferably 1 to 6 hydroxyl groups. The aliphatic hydroxycarboxylic acid ester is chosen from: a) partial or total esters of linear, saturated monohydroxylated aliphatic monocarboxylic acids; b) partial or total esters of unsaturated monohydroxylated aliphatic monocarboxylic acids; C) partial or total esters of saturated monohydroxylated aliphatic polycarboxylic acids; d) partial or total esters of saturated polyhydroxylated aliphatic polycarboxylic acids; e) partial or total esters of C2 to C16 aliphatic polyols reacted with mono or polyhydroxylated aliphatic mono or poly carboxylic acid, and mixtures thereof. The aliphatic ester esters are advantageously chosen from: the ester resulting from the esterification reaction of hydrogenated castor oil with isostearic acid in proportions of 1 to 1 (1/1) or oil monoisostearate of hydrogenated castor, the ester resulting from the esterification reaction of hydrogenated castor oil with isostearic acid in proportions 1 to 2 (1/2) or hydrogenated castor oil diisostearate, - ester resulting from the esterification reaction of hydrogenated castor oil with isostearic acid in proportions 1 to 3 (1/3) or hydrogenated castor oil triisostearate, and mixtures thereof. Among the pasty compounds of plant origin, a mixture of soy sterols and oxyethylenated (5OE) oxypropylene pentaerythritol (5 PO), marketed under the reference Lanolide by the company VEVY, will preferably be chosen. The pasty compound is preferably 1 to 99%, more preferably 1 to 60%, more preferably 2 to 30% and most preferably 5 to 15% by weight of each solid product composition. In particular, a pasty compound and an ester as defined above may be combined in the cosmetic composition in a pasty / ester compound weight ratio varying from 0.25 to 0.75, especially from 0.3 to 0.6. The cosmetic composition according to the invention may have a continuous fat phase, which may contain less than 5% water, especially less than 1% water relative to its total weight. Fatty phase Each composition, especially when the product is intended to be applied to the lips, may comprise at least one fatty phase and in particular at least one fatty substance that is liquid at room temperature (25 ° C.) and at atmospheric pressure and / or a body solid fat at room temperature and at atmospheric pressure such as waxes, gums and mixtures thereof. The fatty phase may further contain gelling and structuring agents of organic oils and / or lipophilic organic solvents. The fatty phase of the composition according to the invention may comprise, as liquid fatty substance, at least one volatile or non-volatile oil or a mixture thereof. For the purposes of the invention, the term "volatile oil" means any oil capable of evaporating on contact with the skin in less than one hour at ambient temperature and atmospheric pressure. The volatile oils of the invention are volatile cosmetic oils which are liquid at ambient temperature and have a non-zero vapor pressure at ambient temperature and atmospheric pressure, in particular from 0.01 to 300 mm Hg (1.33 Pa at 40,000 Pa) and preferably greater than 0.3 mm Hg (30 Pa). By "non-volatile oil" is meant an oil remaining on the skin at room temperature and atmospheric pressure for at least several hours and having in particular a vapor pressure of less than 0.01 mmHg (1.33 Pa). These volatile or non-volatile oils may be hydrocarbon oils, in particular of animal or vegetable origin, silicone oils, or mixtures thereof. By "hydrocarbon oil" is meant an oil containing mainly hydrogen and carbon atoms and optionally oxygen, nitrogen, sulfur and / or phosphorus atoms. The volatile hydrocarbon oils may be chosen from hydrocarbon oils having from 8 to 16 carbon atoms, and in particular C8-C16 branched alkanes such as C8-C16 isoalkanes of petroleum origin (also called isoparaffins), such as isododecane. (also called 2,2,4,4,6-pentamethylheptane), isodecane, isohexadecane, and for example the oils sold under the trade names Isopars or permetyls, C8-C16 branched esters such as isohexyl neopentanoate, and mixtures thereof. Other volatile hydrocarbon oils such as petroleum distillates, especially those sold under the name Shell Solt by Shell, can also be used. Volatile silicones can also be used as volatile oils, for example volatile linear or cyclic silicone oils, especially those having a viscosity of 8 centistokes (8 × 10 -6 m 2 / s), and especially having from 2 to 7 silicon atoms, these silicones optionally having alkyl or alkoxy groups having from 1 to 10 carbon atoms. As volatile silicone oil that may be used in the invention, mention may be made in particular of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, hexamethylisiloxane, octamethyltrisiloxane, decamethyl tetrasiloxane, dodecamethyl pentasiloxane and mixtures thereof. The volatile oil may be present in the composition according to the invention at a content ranging from 0.1% to 98% by weight, especially from 1% to 65% by weight, and in particular from 2% to 50% by weight. , relative to the total weight of the composition. The non-volatile oils may in particular be chosen from fluorinated hydrocarbon oils which may be fluorinated and / or non-volatile silicone oils. Non-volatile hydrocarbon oils that may especially be mentioned include: hydrocarbon-based oils of animal origin; hydrocarbon-based oils of vegetable origin, such as triglycerides consisting of esters of fatty acids and of glycerol, the fatty acids of which may have chain lengths varied from C4 to C24, the latter being linear or branched, saturated or unsaturated; these oils are in particular the oils of wheat germ, sunflower, 2908656 17 grape seed, sesame, corn, apricot, castor, shea, avocado, olive, soya, sweet almond, palm, rapeseed, cotton, hazelnut, macadamia, jojoba, alfalfa, poppy, pumpkin, sesame, pumpkin, rapeseed, blackcurrant, evening primrose, millet, barley, quinoa, rye, safflower, bancoulier, passiflora, muscat rose; shea butter; or alternatively caprylic / capric acid triglycerides, such as those sold by Stéarineries Dubois or those sold under the names Miglyol 810, 812 and 818 by the company Dynamit Nobel, synthetic ethers having from 10 to 40 carbon atoms; linear or branched hydrocarbons of mineral or synthetic origin, such as petroleum jelly, polydecenes, hydrogenated polyisobutene such as parleam, squalane and mixtures thereof; synthetic esters, such as the oils of formula R1000R2 in which R1 represents the remainder of a linear or branched fatty acid having from 1 to 40 carbon atoms and R 2 represents a particularly branched hydrocarbon-based chain containing from 1 to 40 carbon atoms, provided that R 1 + R 2 is 10, such as for example Purcellin oil (cetostearyl octanoate), isopropyl myristate, isopropyl palmitate, C12-C15 alcohol benzoates, hexyl laurate, diisopropyl adipate, isononyl isononanoate, 2-ethylhexyl palmitate, isostearyl isostearate, heptanoates, octanoates, decanoates or ricinoleates of alcohols or polyalcohols such as propylene glycol dioctanoate; hydroxylated esters such as isostearyl lactate, diisostearyl malate; polyol esters and pentaerythritol esters, branched-chain and / or unsaturated carbon-chain liquid fatty alcohols having from 12 to 26 carbon atoms, such as octyl dodecanol, isostearyl alcohol and oleic alcohol, 2-hexyldecanol, 2-butyloctanol, and 2-undecylpentadecanol; higher fatty acids such as oleic acid, linoleic acid, linolenic acid and mixtures thereof. The non-volatile silicone oils that may be used in a composition of a product according to the invention may be non-volatile polydimethylsiloxanes (PDMS), polydimethylsiloxanes comprising pendant alkyl or alkoxy groups and / or silicone chain ends, groups each having from 2 to 24 carbon atoms, phenyl silicones such as phenyl trimethicones, phenyl dimethicones, phenyl trimethylsiloxy diphenylsiloxanes, diphenyl dimethicones, diphenyl methyldiphenyl trisiloxanes, and 2-phenylethyl trimethylsiloxysilicates, and mixtures thereof. The non-volatile oils may be present in a composition of a product according to the invention in a content ranging from 0.01 to 90% by weight, in particular from 0.1% to 85% by weight, and in particular from 1 to % to 70% by weight, relative to the total weight of the composition. The oils may represent from 0 to 99% of the total weight of each composition, preferably from 0.05 to 60% and better still from 1 to 35%. The oils can have a molecular weight of between 650 and 10,000 g / mol, preferably between 750 and 7,500 g / mol. According to one embodiment, each composition comprises an oily phase comprising at least 70% by weight of an oil with a molar mass of between 650 and 10,000 g / mol, preferably between 750 and 7,500 g / mol. The oily phase advantageously comprises more than 80%, preferably more than 85% by weight of an oil with a molar mass of between 650 and 10,000 g / mol, preferably between 750 and 7,500 g / mol. The oil of high molar mass can be chosen from lipophilic polymers: linear fatty acid esters having a total number of carbons ranging from 35 to 70, hydroxylated esters, aromatic esters, esters of fatty alcohol or branched C24-C28 fatty acids, silicone oils, vegetable oils, and mixtures thereof. The high molecular weight oil may be selected from polybutylenes, hydrogenated polyisobutylenes, polydecenes, hydrogenated polydecenes, copolymers of vinylpyrrolidone such as PVP / hexadecene copolymer, pentaerythrityl tetrapelargonate, polyglycerol-2 triisostearate, tridecyl trimellitate, triisoarachidyl citrate, pentaerythrityl tetraisonanoate, glyceryl triisostearate, pentaerythrityl tetraisostearate, glyceryl tetradecanoate tri decyl-2, pentaerythritol tetra decyl-2 tetradecanoate, phenyl silicones, sesame oil, and mixtures thereof. Each composition may also comprise a fatty substance which is solid at ambient temperature and at atmospheric pressure, chosen, for example, from waxes, gums and mixtures thereof. This solid fatty substance may be present in a proportion of from 0.01 to 50%, especially from 0.1 to 40% and in particular from 0.2 to 30% by weight, relative to the total weight of the fatty phase. Waxes and Erasers Each composition may contain at least one wax. By "wax" is meant a lipophilic fat compound, solid at room temperature (25 ° C.), with a reversible solid / liquid state change, having a melting point of greater than 30 ° C. and up to 200 ° C. hardness greater than 0.5 MPa, and having in the solid state an anisotropic crystalline organization. By bringing the wax to its melting temperature, it is possible to render it miscible with oils and to form a microscopically homogeneous mixture, but by bringing the temperature of the mixture to room temperature, a recrystallization of the wax in the oils is obtained. of the mixture. The waxes that can be used are solid compounds at room temperature, intended to structure the composition, in particular in the form of a stick; they may be hydrocarbon-based, fluorinated and / or silicone and may be of vegetable, mineral, animal and / or synthetic origin. In particular, they have a melting temperature of greater than 40 ° C. and better still greater than 45 ° C. As wax which may be used, there may be mentioned those which are generally used in the cosmetics field: they are in particular of natural origin, such as beeswax, carnauba wax, Candelilla wax, Ouricoury wax, Japan wax, cork fiber or sugar cane, rice, Montan wax, paraffin wax, lignite or microcrystalline waxes, ceresin or ozokerite, oils hydrogenated as jojoba oil; synthetic waxes such as polyethylene waxes resulting from the polymerization or copolymerization of ethylene and Fischer-Tropsch waxes or fatty acid esters such as octacosanyl stearate, glycerides concretes at 40 C and better at 45 C silicone waxes such as alkyl- or alkoxydimethicones having an alkyl or alkoxy chain of 10 to 45 carbon atoms, esters of poly (di) methylsiloxane solid at 40 C whose ester chain comprises at least 10 carbon atoms; and their mixtures. The gums useful in the invention are generally in an oil solubilized form, the polymers are solid at room temperature and the resins can be liquid or solid at room temperature. By gum is meant a fatty substance which is in the form of a solid polymer at room temperature having a weight average molecular weight of 50,000 to 1,000,000. The gum is often sold in dispersion in an organic solvent, such as silicone. The nature and quantity of the gums or waxes depend on the mechanical properties and textures sought. As an indication, the wax may represent from 0.01 to 50%, preferably from 2 to 40%, and better still from 5 to 30% of the total weight of each composition of the product. In particular, the wax may be present in the form of wax emulsion (s) in water. The wax may be present in each composition in a content ranging from 0.01% to 50% by weight, in particular from 0.1% to 30% by weight, and in particular from 0.2% to 20% by weight, relative to the total weight of the composition. Other Coloring Agents One or more solid product compositions may contain other coloring agents than the multilayer interference pigment (s). At least one of the compositions may comprise one or more diffusing pigments, generating a color by an absorption phenomenon, in a proportion that makes it possible to retain the interference phenomenon responsible for the color of the composition once applied to the materials. keratin. Various diffusing pigments may be envisaged, being for example chosen from among the lacquers or organic pigments selected in particular from the materials below and their mixtures: cochineal carmine, organic pigments of azo, anthraquinone, indigo, xanthene dyes, pyrenic, quinolinic, triphenylmethane, fluorane, organic lakes or insoluble salts of sodium, potassium, calcium, barium, aluminum, zirconium, strontium, titanium, acid dyes such as dyes azo, anthraquinone, indigo, xanthene, pyrene, quinoline, triphenylmethane, fluorane, these dyes may include at least one carboxylic or sulfonic acid group. Among the organic pigments, mention may be made of those known under the following names: D & C Blue No. 4, D & C Brown No. 1, D & C Green No. 5, D & C Green No. 5, D & C Orange No. 4, D & C Orange No. 5, D & C Orange No. 10, D & C Orange # 11, D & C Red # 6, D & C Red # 7, D & C Red # 17, D & C Red # 21, D & C Red # 22, D & C Red # 27, D & C Red # 28, D & C Red # 30, D & C Red n 31, D & C Red No. 33, D & C Red No. 34, D & C Red No. 36, D & C Violet No. 2, D & C Yellow No. 7, D & C Yellow No. 8, D & C Yellow No. 10, D & C Yellow No. 11, FD & C Blue No. 1, FD & C Green No. 3, FD & C Red 10 No. 40, FD & C Yellow No. 5, FD & C Yellow No. 6. The lacquer may be supported by an organic carrier such as rosin or aluminum benzoate, for example. Among the organic lakes, mention may be made especially of those known under the following denominations: D & C Red n Aluminum Lake, D & C Red n Aluminum Aluminum 15, D & C Red N Aluminum Aluminum, D & C Red Aluminum Aluminum, D & C Red No. 6 Barium lake, D & C Red # 6 Barium / Strontium lake, D & C Red # 6 Strontium lake, D & C Red # 6 Potassium lake, D & C Red # 7 Aluminum lake, D & C Red # 7 Barium lake, D & C Red # 7 Calcium lake, D & C Red n 7 Calcium / Strontium lake, D & C Red No. 7 Zirconium lake, D & C Red No. 8 Sodium lake, D & C Red No. 9 Aluminum lake, D & C Red 20 No. 9 Barium lake, D & C Red No. 9 Barium / Strontium lake, D & C Red No. 9 Zirconium lake , D & C Red n 10 Sodium lake, D & C Red n 19 Aluminum lake, D & C Red n 19 Barium lake, D & C Red n 19 Zirconium lake, D & C Red n 21 Aluminum lake, D & C Red n 21 Zirconium lake, D & C Red n 22 Aluminum lake, D & C Red n 27 Aluminum lake, D & C Red n 27 Aluminum / Titanium / Zirconium lake, D & C Red n 27 Barium lake, D & C Red 25 n 27 Calcium lake, D & C Red n 27 Zirconium lake, D & C Red No. 28 Aluminum lake, D & C Red No. 30 lake, D & C Red No. 31 Calcium lake, D & C Red No. 33 Aluminum lake, D & C Red No. 34 Calcium lake, D & C Red No. 36 lake, D & C Red No. 40 Aluminum lake, D & C Blue n 1 Aluminum lake, D & C Green n 3 Aluminum lake, D & C Orange n 4 Aluminum lake, D & C Orange n 5 Aluminum lake, D & C Orange n 5 Zirconium lake, 30 D & C Orange n 10 Aluminum lake, D & C Orange n 17 Barium lake, D & C Yellow # 5 Aluminum Lake, D & C Yellow # 5 Zirconium Lake, D & C Yellow # 6 Aluminum Lake, D & C Yellow # 7 Zirconium Lake, D & C Yellow # 10 Aluminum Lake, FD & C Blue # 1 2908656 22 Aluminum Lake, FD & C Red # 4 Aluminum Lake , FD & C Red No. 40 Aluminum Lake, FD & C Yellow No. 5 Aluminum Lake, FD & C Yellow No. 6 Aluminum Lake. The chemical materials corresponding to each of the organic dyestuffs mentioned above are mentioned in the book International Cosmetic Ingredient Dictionary and Handbook, Edition 1997, pages 371 to 386 and 524 to 528, published by The Cosmetic, Toiletry, and Fragrance Association, of which the content is incorporated in this application by reference. The diffusing pigment may be a composite pigment having a core at least partially coated with a bark. Such a composite pigment may be composed in particular of particles having an inorganic core and at least one at least partial coating of at least one organic dyestuff. At least one binder can advantageously contribute to the fixing of the organic dyestuff on the inorganic nucleus. The composite pigment particles may have various shapes. These particles may in particular be platelet-shaped or globular, in particular spherical, and may be hollow or solid. Platelet-shaped means particles whose ratio of the largest dimension to the thickness is greater than or equal to 5. A composite pigment may have, for example, a specific surface area of between 1 and 1000 m 2 / g, especially between 10 and 600 m2 / g approximately, and in particular between 20 and 400 20 m2 / g approximately. The specific surface is the value measured by the BET method. The mass proportion of the core may exceed 50% relative to the total weight of the composite pigment, for example going from 50% to 70%, for example from 60% to 70%. The coloring agent may still be a dye. It may be a dye of plant, animal or mineral origin, in particular of vegetable or mineral origin, in particular of plant origin. This dye may be of a non-synthetic nature. The dye may be a water-soluble or fat-soluble natural dye. As an illustration of the water-soluble natural coloring agents that can be used according to the invention, mention may be made especially of caramel, beetroot juice and carmine, betanin (beet), copper chlorophyllin, blue methylene, anthocyanins (enocianin, black carrot, hibiscus, elderberry) and riboflavin. By way of illustration of the natural liposoluble coloring agents which can be used according to the invention, mention may be made especially of Sudan red, β-carotene, carotenoids, lycopene, palm oil and brown. Sudan, quinoline yellow xanthophylls (capsanthin, capsorubin, lutein), and curcumin. As other natural dyes, there may be mentioned more particularly anthocyanins of flowers or fruits or their derivatives, flavonoids and tannins extracted from native or fermented plants, juglone, lawsone, extracts of fermented soybean, seaweed, fungi, microorganisms, unsubstituted Flavylium salts in position 3 as described in patent EP 1 172 091, extracts of Gesneria Fulgens, Blechum Procerum, Saxifraga and pigments obtainable by extraction by a organic or hydro-organic solvent of a micromycete culture medium of the Monascus Monascus type. Examples of synthetic dyes that may be mentioned are synthetic liposoluble dyes such as, for example, DC Red 17, DC Red 21, DC Red 27, DC Green 6, DC Yellow 11, DC Violet 2 and Orange DC 5. Examples of synthetic water-soluble dyes that may be mentioned include FDC Red 4, DC Red 6, DC Red 22, DC Red 28, DC Red 30, DC Red 33, DC Orange 4, DC Yellow 5, DC Yellow 6, DC Yellow 8, FDC Green 3, DC Green 5 and FDC Blue 1.

  Fillers and active agents For the purposes of the invention, the term "any organic and / or inorganic compound introduced into a cosmetic composition is intended to be used to adjust its properties in terms of texture or in other words to control its properties. rheological. Pigments are notably excluded from this definition.

Each composition comprises, for example, less than 15% by weight, in particular less than 10% by weight, in particular less than 7% by weight of filler relative to the total weight of the composition. It may especially be for example talc, zinc stearate, mica, kaolin, polyamide (nylon) powders (Orgasol from Atochem), polyethylene powders, tetrafluoroethylene polymer powders (Teflon ), starch, boron nitride, polymeric microspheres such as those of polyvinylidene chloride / acrylonitrile such as Expancel (Nobel Industrie), copolymers of acrylic acid (Polytrap Dow Corning), silicone resin microbeads (Toshiba Tospearls, for example), and organopolysiloxane elastomers. As cosmetic active agents that may be used in the invention, mention may be made of vitamins A, E, C, B3, provitamines such as D-panthenol, soothing active agents such as a-bisabolol, aloe vera, allantoin, plant extracts or essential oils, protective or restructuring agents such as ceramides, freshness active ingredients such as menthol and its derivatives, emollients (cocoa butter, dimethicone), moisturizers (arginine PCA), anti-wrinkle active ingredients, essential fatty acids, and mixtures thereof. Those skilled in the art will take care to choose this or these optional additional compounds, and / or their quantity, in such a way that the desired properties of each composition are not, or not substantially, impaired by the addition considered. Preparation Each composition can be obtained according to the preparation methods conventionally used in cosmetics or in dermatology. The product may be in extruded, compacted or cast form in a stick or cup. The product compositions can be coextruded. The product may be, among other makeup products, a product to be applied to the lips, for example a lip gloss, a lipstick, a lip balm, a blush, a foundation, a product of the invention. eye contour, eyeliner, eye shadow, makeup base, body make-up product or hair.

Packaging and modes of application FIG. 1 shows a stick S which has two blocks A and B extending over the entire length of the stick. Each block A or B occupies for example half of the stick and these two blocks are for example contiguous according to the diameter of the stick.

The stick S may be packaged in a packaging and dispensing device comprising, for example, a body C in which the stick is at least partially received, as illustrated in FIG. 2, and a drive mechanism M for moving the stick relative to the body C. The packaging and dispensing device can be of any type suitable for packaging a stick and the drive mechanism M comprises for example 5 a rotary wheel in the lower part. The two blocks A and B may be of the same proportion or not within the stick. One of the blocks may be surrounded by the other block, as shown in FIG. 3. The two blocks A and B may each have a color difference AE between the color within the stick and the color after application to the materials. keratin.

Only one of the blocks A or B may have this feature, the other block not having, for example, this property. The two blocks A and B may or may not have substantially the same color within the stick, for example the white color. The stick may comprise, if necessary, more than two blocks, for example three blocks as shown in FIG. 4. The third block E may or may not have a color difference between the color within the stick, in the mass, and the color after application to keratin materials. The stick may be produced by coextrusion, casting or compaction of the compositions intended to form the different blocks.

In the example of FIG. 5, the product comprises two blocks A and B cast or compacted in a cup. In a variant not shown, the composition blocks are contained in a sheath so as to form a pencil.

Another aspect of the invention according to another aspect of the invention is a method of presenting a cosmetic composition produced in accordance with the invention, comprising the steps of: illuminating at least one first region of a composition sample with diffuse illumination so as to show the color in the mass, - illuminating at least a second region of a composition sample with directional illumination so as to reveal the interferential color.

The product can be illuminated so as to simultaneously show all the colors of the compositions after application. The first and second regions may be different regions of the same composition sample.

Alternatively, the first and second regions belong to different samples. In another variant, the first and second regions correspond to the same region and the diffuse and directional lighting are applied alternately. The invention further relates, in another of its aspects, a display 10 comprising: - a directional lighting source, - a diffuse lighting source, - a support for exposing at least one sample composition at the diffuse lighting source and at least one composition sample at the directional lighting source. The invention also relates to a process for making up keratin materials using a product according to the invention.

It may be makeup of the skin, lips or hair. Makeup can for example be performed without mixing compositions to the application. For example, a stick can be displaced by a translational movement so as to create two colored traces having different colors and each corresponding to the deposition of the composition of one of the blocks. The application can also be carried out so as to cause a mixture or superposition of the compositions of the blocks during the application. In a variant where the blocks of composition are contained in a cup, each of the compositions is for example taken by means of an applicator or the finger.

Proposed Example The contents indicated are by weight. Example 1 Lipstick First composition Trimethyl tri-mellitate 11 Liquid lanolin Isostearyl malate 12 Acetylated lanolin 10 Triglycerides of lauric / palmitic / cetyl / stearic acids 5 (50/20/10/10 Microcrystalline wax (C20-C60) 3 Protected isopropyl lanolate 9 Octyl-2-decanol Phenyl trimethylsiloxy trisiloxane (VISCOSITY: 20 CST PM: 372) 4 Polyethylene wax (MW: 500) 8 Multilayered interferential pigment * 10 Pigment metallic reflection * * 3 5 * TIMIRON SILK RED from MERCK ** METASHINE ME 2040 PS from NIPPON SHEET GLASS 10 Second composition Tri-mellitate from tri-decylate 11 Liquid lanolin 10 Isostearyl malate 12 Acetylated lanolin Triglycerides of lauric / palmitic / cetyl / stearic acids (50/20/10/10) Microcrystalline wax (C20-C60) 3 Protected isopropyl lanolate 9 Octyl-2-decanol Phenyl trimethylsiloxy trisiloxane (VISCOSITY: 20 CST) PM: 372) 4 Polyethylene wax (MW: 500) 8 Pigment int multilayered erferential * 10 Metal Reflecting Pigment * * 3 * TIMIRON SILK BLUE from MERCK ** METASHINE ME 2040 PS from NIPPON SHEET GLASS Both compositions are coextruded to form two blocks producing different colors in the application.

Of course, the invention is not limited to the example that has just been given. The expression having one is synonymous with having at least one and between 5 means included limits.

Claims (22)

  1. A solid cosmetic product, in particular a stick, comprising at least: a first block of a first cosmetic composition containing, in a cosmetically acceptable medium, at least a first multilayer interference pigment, a second block of a second composition cosmetic, containing in a cosmetically acceptable medium, at least one second multilayer interference pigment different from the first, at least one of the first and second compositions being capable of having a first color in the mass and a second color after application to materials. keratinous, the first and second colors differing by a difference AE greater than or equal to 2, better 5.   2. Product according to claim 1, each of the first and second compositions being capable of presenting a first color within the product and a second color after application to keratinous materials, the first and second colors of each composition differing from a gap. AE greater than or equal to 5.   3. Product according to claim 1 or 2, the first (A) and second (B) blocks extending over the entire length of the stick (S).   4. Product according to claim 1 or 2, the first (A) and second (B) blocks being concentric.   5. Product according to any one of claims 1 to 4, at least one of the first and second compositions being anhydrous.   6. Product according to any one of claims 1 to 4, at least one of the first and second compositions being aqueous. 25   7. Product according to any one of claims 1 to 6, the total mass content of multilayer interference pigment in at least one of the first and second compositions ranging from 7 to 20%.   8. Product according to claim 7, the content ranging from 8 to 15%.   9. A product according to any one of claims 1 to 8 wherein the color of at least one of the compositions in the mass is white.   The product of claim 9 wherein the bulk composition has a Whiteness Index greater than or equal to 40.   11. Product according to any one of claims 1 to 10, at least one of the compositions having no other coloring agent than the multilayer interference pigment or pigments.   12. A product according to any one of claims 1 to 11, the multilayer interference pigment of at least one of compositions comprising at least four layers.   13. Product according to any one of claims 1 to 12, the multilayer interference pigment at least one of compositions comprising a substrate of a transparent material. 10   14. Product according to any one of claims 1 to 13, the multilayer interference pigment of at least one of compositions comprising a substrate of silica, glass mica, alumina or metal.   15. A product according to any one of claims 1 to 14, at least one of the first and second compositions having only one multilayer interference pigment.   16. Product according to any one of claims 1 to 14, at least one of the compositions comprising at least two multilayer interference pigments.   17. Product according to claim 16, wherein the two multilayer interference pigments have layers consisting of the same materials but at least one layer of a pigment having a thickness different from a corresponding layer of the other pigment.   18. The product according to any of claims 17 to 17, the compositions having two respective multilayer interference pigments having layers of the same materials, at least one layer of a pigment having a thickness different from a corresponding layer of other pigment, so as to produce different colors.   19. A method for making up keratin materials, comprising applying to the keratin materials at least the first and second compositions of a product according to any one of claims 1 to 18.   20. The method of claim 19, the first and second compositions being applied simultaneously. 2908656   21. The method of claim 20, the compositions being applied so as to create traces of different colors.   22. A packaging and dispensing device comprising: - a product as defined in any one of claims 1 to 18, a hollow body in which the product is housed at least partially. 25. Device according to claim 22, comprising a drive mechanism for moving the composition relative to the body. 26. Packaging assembly comprising: a product as defined above in any one of claims 1 to 18.