MX2008003878A - Composition based on mineral concentrates derived for precious stones - Google Patents

Abstract

The invention concerns a composition based on mineral concentrates. The composition comprises a powder or mixture of powders containing at least one silicon derivative and at least one trace element other than silicon, mixed with a carrier and physiologically acceptable excipients. The invention is useful in cosmetology and dermatology for skin protection.

Description

COMPOSITION BASED ON MINERAL CONCENTRATES DERIVED FROM PRECIOUS STONES FIELD OF THE INVENTION The present invention relates to a novel composition that can be used in cosmetology and in dermatology, and more particularly a novel composition based on mineral concentrates derived from precious stones.

BACKGROUND OF THE INVENTION The skin constitutes an organ that is essential for life, which fulfills several functions, whose quality has a determining influence on the health of any individual. More particularly, the skin constitutes a real barrier to the environment and is subjected to an incessant attack. The quality of their defenses is therefore a main component for the effectiveness of their protection. The skin comprises several integrated layers, that is, the surface layer (epidermis) and the deeper layers (the dermis and the hypodermis), and each of these layers has specific properties that allow the whole to react and adapt to the conditions of your environment.

The epidermis is composed mainly of keratinocytes (90% of the epidermal cells), melanocytes (2 to 3% of the epidermal cells) and Langerhans cells. Its thickness varies in various parts of the body. The dermis is thicker, and is composed mainly of collagen, elastin and proteoglycans. These three types of molecules are synthesized by dermal fibroblasts. Collagen fibers provide the mechanical strength and texture of the skin, elastin is responsible for elasticity and proteoglycans play a major role in the structure and hydration of the skin. Other cells such as macrophages and leukocytes also occur in the dermis layer. The hypodermis is the deepest layer of the skin, and contains adipocytes which produce lipids so that the subcutaneous tissue can produce a fatty layer that protects the muscles, bones and internal organs against impact. The aging of the skin can be intrinsic or extrinsic, that is, caused by the environment, including climatic attacks, which can especially contribute to accelerate the collagen degradation of the dermis, and in particular sun exposure, temperature variations and radicals free The first signs of skin aging, such as wrinkles and fine lines, are generally caused by stress and biological and physiological changes, accelerated by the external environment or lifestyle. The appearance of pigment marks, the decrease in the thickness of the skin and its fall are also changes observed during aging. It is known that the ability of the skin to replace damaged collagen decreases with time, and consequently there are gaps and irregularities in the collagen network. In this way, the functions of the skin are subjected to stress constantly, and especially the epidermis through its function of keratinization, the dermis through its fibroblast function, the dermal-epidermal junction through its function of anchoring and its regulation function and also the microcirculation through its nutritional function and oxygenation. The protection of the skin should focus, as a priority, on the skin surface since any disturbance of the stratum corneum and the surface hydrolipid film has effects on the deeper structures of the skin. The bascularization and microcirculation should also be taken into consideration in order to ensure the maintenance of a good skin balance.

Numerous compositions are known which are intended to protect the skin against the damaging effects of ultraviolet radiation, and these compositions may contain filtering agents or pigments that form a sunscreen. For example, it is possible to use hydrophilic or lipophilic UV-A and UV-B sunscreens which may be chosen from benzophenone or a benzophenone derivative such as 2-hydroxy-4-methoxybenzophenone (EUSOLEX® 4360), or an ester of cinnamic acid such as 2-ethylhexylmethoxycinnamate (PARSOL MCX®), or in addition a cyano-β, β-diphenylacrylate such as octocrylene (EUSOLEX® OCR), camphor 4-methylbenzylidene (EUSOLEX 6300®), and derivatives of dibenzoylmethane such as 4-isopropyldibenzoylmethane (EUSOLEX 8020), and 4-methoxydibenzoylmethane. T filtering agents can be used separately or in combination, as in the patents EP 514 491 and EP 685 225. It is also possible to use pigments that form a filter resistant to ultraviolet rays; these pigments, for example, may be chosen from titanium dioxide, zinc oxide, zirconium oxide or in addition aluminum oxide. In particular, it is possible to use metal oxide nanopigments having a particle size between 5 and 100 nm, such as those described in Patent Application EP 518 773. Various treatments have also been proposed to protect the skin and reduce the signs of the aging of the skin. For example, treatments based on compositions such as creams and lotions containing a-hydroxy acids or retinoids, applied on a regular basis, have been proposed to gradually reduce the number of wrinkles and fine lines. However, through these known products and methods can have a favorable effect on the signs of skin aging, for example, by protecting the skin, or by masking or reducing wrinkles, generally have only a limited effect on the development , which leads to these signs of aging. Additionally, some cosmetic compositions comprising mineral compounds are known. For example, US Pat. No. 4,857,306 describes intended makeup compositions which may contain powders based on colored gemstones in a highly viscous liquid carrier. However, these various mineral compounds derived from precious stones have been used in compositions due to their color or particle size properties; On the other hand, no protection property of the skin has been demonstrated. Application WO 2005/044185 describes a composition intended to protect the skin against electromagnetic emissions containing a combination of a cationic compound, a mineral compound such as fuchsite or malachite and metal particles. Patent FR 2805743 describes the use of nephrite jade powder in a composition due to its known medical effects. US Pat. No. 5,985,021 describes the use of sillimanite (alumina silicate), topaz, zeolite and hematite in soaps and cosmetic compositions due to the beneficial effects it is supposed to have on the skin. US Patent Application 2002/012681 relates to a cosmetic composition comprising mineral powders having fluorescence properties. However, these compositions do not make it possible to provide both an effective protection against radiation and an activation of the microcirculatory functions of the skin. Therefore, it seems desirable to develop cosmetic or dermatological compositions capable of providing excellent surface protection for the skin and more particularly a composition that provides: protection against the damaging effects of electromagnetic radiation and against physical and chemical attacks of the environment with In order to preserve their natural defenses, maintain a good local hydration and preserve their function as fibroblasts; and - activation of the microcirculatory functions in order to improve the nutrition, drainage and oxygenation of the skin.

SUMMARY OF THE INVENTION The object of the present invention, therefore, is a composition that can be used in cosmetology and in dermatology that provides skin protection, especially against electromagnetic radiation and environmental attacks, favoring the microcirculation of the skin and able to maintain its hydration. The composition, according to the present invention, which can be used in cosmetics and in dermatology to provide skin protection as indicated in the above, differs in that it comprises, on the one hand, at least one silicon derivative and, on the other hand, at least one other trace element, such as a mixture as a carrier and physiologically acceptable excipients. More particularly, the composition comprises, on the one hand, a dry powder or a mixture of dry powders obtained from precious or semiprecious stones containing at least one silicon derivative and, on the other hand, an aqueous suspension of powders obtained from precious stones. or semiprecious containing at least one trace element other than silicon, to form a mineral concentrate, as a mixture with a carrier and physiologically acceptable excipients.

The composition according to the present invention preferably comprises a powder or a mixture of powders containing, on the one hand, a silicon oxide (silica) and / or a silicate and, on the other hand, one or more trace elements, other than silicon. The trace elements are chosen from iron, copper, zinc, manganese, molybdenum, boron, cobalt, aluminum and selenium. These powders and powder mixtures based on a silicon and / or silicate derivative and trace elements are preferably obtained from precious or semiprecious stones and more particularly tourmaline, aquamarine, emerald, citrine, amethyst, malachite, rhodochrosite, smithsonite, rhodolite, lapis lazuli, sapphire, ruby and topaz. Preferably, precious or semiprecious stones containing silicon or silicates are chosen, and for example, tourmaline which contains borosilicate, aquamarine and emerald which contain an aluminosilicate, and citrine and amethyst which contain silicon dioxide. Precious or semiprecious stones containing trace elements are preferably chosen from malachite which contains copper, rhodochrosite which contains manganese, sapphire which contains aluminum and smithsonite which contains zinc. Thus, according to a preferred embodiment of the invention, the composition contains on the one hand, at least one powder obtained from precious or semiprecious stones containing a silicon derivative selected from a borosilicate, an aluminosilicate and silicon dioxide and , on the other hand, at least one powder containing a chosen trace element of iron, copper, zinc and manganese. Precious or semiprecious stones containing a silicon derivative are preferably chosen from aquamarine, tourmaline, emerald, citrine and amethyst, while precious stones containing a trace element are preferably chosen from malachite, rhodochrosite, sapphire and smithsonite. These precious or semiprecious stones are available in powder form and are reduced in powder when grinding to obtain a particle size between 1 μm and 50 μm. The average size of the powder particles is preferably less than 50 μm, and more particularly less than about 20 μm. For example, aquamarine is an ultrafine powder that has an average particle size of less than 10 microns. Its general formula comprises a beryllium aluminosilicate with chromium and traces of magnesium. Its crystalline system is hexagonal with a column arrangement. Heavy metal contamination is less than 50 ppm. Citrine is a pale gray ultrafine powder with an average particle size of less than 10 microns. Its general formula comprises silicon dioxide of iron and manganese, calcium and titanium. Its crystalline system is hexagonal with six sides. Its content of heavy metals is less than 50 ppm. According to a preferred modality, the composition comprises, as a mixture, one or more dry powders containing the silicon derivative and an aqueous suspension comprising one or more powders containing the trace elements, to form a mineral concentrate. The weight ratio of dry powders / powder suspension can be between 1/5 and about 1/1, this relationship is not limiting. Thus, according to a preferred embodiment of the invention, the composition comprises a mixture of dry powders obtained by grinding aquamarine, tourmaline, citrine and amethyst, and an aqueous suspension of powders obtained by grinding malachite, rhodochrosite and smithsonite, and also a physiologically acceptable carrier and excipients. The term "physiologically acceptable", within the meaning of the present invention, is understood to mean carriers and excipients of a type commonly used in cosmetic and dermatological compositions, which are neutral with respect to the active ingredients used, which do not have a toxic effect. and that do not give rise to any side effect that is harmful to the skin. According to a variant, it is advantageous to add sapphire in powder form, in an amount representing between 1 and 20% by weight of the composition, and preferably between 5 and 15% by weight, to the above composition. The average particle size can be between 5 and 20 μm. Added in powder form, the sapphire substantially improves the ultraviolet radiation reflectivity and thus increases the sun protection power of the compositions according to the invention. Powders containing trace elements such as iron, zinc, copper and manganese can generally be used in the form of commercially available aqueous extracts or suspensions. These aqueous extracts or suspensions are soluble in water and are generally insoluble in mineral and vegetable oils. Its solids content is generally between 0.2% and 10% and its trace element content between 1 and 15%, or even higher. The concentration of use of these aqueous extracts or suspensions may be in the order of 0.5% to 50% and preferably 1% to 30%. It may be favorable to incorporate in the composition a substance that improves coverage such as, for example, boron nitride. This substance is added after mixing the dry powders and the suspended powders. A binder, such as a polyol, polyethylene glycol, butylene glycol and glycerol, can be incorporated favorably in the composition of the mineral concentrate. According to the invention, glycerol is preferably used. A gelling agent is preferably added to improve the physical properties of the composition. It is more particularly possible to use a gelling agent chosen from polyacrylamides (for example, Carbopol type), acrylate / acrylic acid or acrylamide / acrylamidopropanesulfonic acid copolymers, polyacrylamide-based mixtures and, for example, a mixture of polyacrylamide, isoparaffin 13 to 14 carbon atoms and Laureth-7 (SEPIGEL 305® from Seppic), cellulose derivatives such as hydroxypropylcellulose, chitosan, plant mucopolysaccharides and clays. The mineral concentrate containing, where appropriate, boron nitride, is diluted in the gelling agent, and the excipients are added so that the content of the mineral concentrate in the final composition is between 1% and 15%, preferably between 2% and 10% by weight in relation to the total weight of the composition. Tests carried out with various mineral concentrates according to the invention have shown favorable properties that can be used in cosmetology and in dermatology, especially direct effects of the protection of the skin, in particular a sunscreen effect, an antioxidant effect and an effect thermal and microcirculatory.

Sun protection The tests were carried out with mineral concentrates diluted to 2.5%, 5% and 10% respectively, in a neutral carrier which can contain the gelling agent (SEPIGEL 305) optionally with the addition of binder, to evaluate the capacity for protect against radiation, by comparison with a known sunscreen based on titanium oxide, and demonstrated an excellent efficiency in a wavelength range of 190 to 900 nm, ie a range of ultraviolet to infrared. It is particularly interesting to note that the results are substantially equivalent for the three tested concentrations of 2.5%, 5% and 10%, which show that a satisfactory protective effect against radiation is obtained from the 2.5% dose and that, beyond this value, the effect no longer depends on the dose. More particularly, when using the mineral concentrate having the composition A indicated in Example 1, the absorption and reflection of UV to IR radiation were verified by spectroscopy in comparison with titanium oxide. The spectra are represented in the attached Figures 1 and 2.

BRIEF DESCRIPTION OF THE FIGURES Figure 1 shows the absorption spectrum in a wavelength range from 190 nm to 900 nm indicated on the x axis. Curve A corresponds to titanium oxide (Ti02) taken as a reference, while curves B, C and D correspond to the mineral concentrate A of Example 1, at concentrations of 10%, 5% and 2.5% respectively. These three curves are practically superimposed, which shows that the absorption effect does not depend on the dose beyond 2.5%. The gap (1) between curve A and curves B, C and D shows that the mineral concentrate of the invention has a higher absorption than titanium oxide. The section (2) of the curves shows that the mineral concentrate has an absorption equivalent to that of the titanium oxide in the ultraviolet range, and the gap (3) shows that the absorption of the titanium is greater in this zone. Figure 2 shows the reflectance spectrum of mineral concentrate B described in Example 1 in the following compared to titanium oxide (Ti02) taken as a reference. This spectrum shows that in the ultraviolet zone, the mineral concentrate of the invention has a reflectance value higher than that of titanium oxide. Figure 3 shows the reflectance spectrum of the composition corresponding to the mineral concentrate F described in Example 1, taking the titanium oxide as a reference. This spectrum clearly shows a very marked increase in reflectivity in the ultraviolet range centered around 345 nm.

DETAILED DESCRIPTION OF THE INVENTION These results show that the compositions according to the invention provide an effective protection against radiation, in particular UV rays, without the need to add a UV filtering agent or a sunscreen.

Direct protection The immediate protective effect has been verified by a hives test. This test consists in producing an irritation by applying a drop of 10% lactic acid on one of the nasal folds of a patient, then comparing it with a placebo in the other nasal crease. The placebo used is saline. The composition of the invention was first applied to the skin, before the application of lactic acid and physiological saline, in half of the patients. The composition of the invention is the mineral concentrate A of Example 1 diluted to 2.5% in SEPIGEL 305. The test is carried out on a sample of 10 patients having delicate and sensitive skin. The degree of irritation is evaluated on a scale of 0 (without irritation) to 10 (significant irritation). The average for patients who did not receive the composition of the invention is 7.5 while only 3.5 in patients who received it. This test shows the protective effect of the mineral concentrate according to the present invention.

Antioxidant effect The mineral concentrate according to the invention has shown an unexpected antioxidant effect as measured by in vivo tests. The evaluation of the antioxidant effect was carried out by measuring the degradation of squalene under ultraviolet radiation. Squalene is a natural compound present in the skin bait, which due to its unsaturated chemical structure, oxidizes easily after exposure to ultraviolet rays. The oxidation product can be assayed by HPLC chromatography. The principle of the test therefore consists of measuring the intensity of the HPLC peak characteristic of squalene and its oxidation product (monohydroperoxide), after controlled exposure to ultraviolet rays. The evaluation procedure consists in applying to the skin the mineral concentrates A and B of the invention described in Example 1, then in removing a bait sample from the forehead of each volunteer by means of a SEBUTAPE® band after 1 hour. of contact with the product, then irradiation with ultraviolet rays (lamp Philips UVA-B, which supplies 30-40 joules / cm2, placed at 21 cm for 16 minutes) in order to oxidize the squalene present in the removed bait. The surface of the skin was cleaned 5 minutes before the start of the test using a swab soaked with ethyl alcohol at 70 ° to remove the lipids present on the surface. Two samples of bait were removed from each volunteer who participated in the test by means of two bands of SEBUTAPE® and each band was divided into two parts, one of which was exposed to UV rays and the other not in order to act as a reference. The same tests were carried out with a placebo (same composition without the mineral concentrate of the invention). The average values of the detected amounts of squalene not oxidized in the bait for the mineral concentrates A and B according to the invention, to TO (immediately after application of the composition) and to Ti (1 hour after the application), they are indicated in the following table (quantities in μg in the SEBUTAPE® band): When based on a value of 100 for the unirradiated sample, the relative amounts of non-oxidized squalene are expressed in the following table: These results show the effectiveness of the mineral concentrate of the invention against the oxidation of squalene by exposure to ultraviolet rays. The application of a composition according to the invention to the skin before exposure to ultraviolet rays induces a protective effect of the bait. Additionally, the tests show that the composition of the invention does not have an oxidizing effect, even after exposure, unlike certain oils whose degradation products are oxidized and have a harmful effect on the skin, in particular monoi oils or certain benzophenones used as sun protection products. This result is even more favorable since the composition of the invention provides protection against ultraviolet radiation, as indicated above, which then makes the addition of UV filtering agents less useful. Furthermore, it has been observed that the mineral concentrate of the invention does not modify the bait excretion and therefore has no occlusive effect, and that it may even have a bait absorption effect.

Effects on cutaneous microcirculation The study was carried out in a sample of 5 women aged between 23 and 32 years. The averages of the results are given in the following table. A first measurement is carried out at the time of the application of mineral concentrate A to the skin (TO) and a second measurement is carried out 5 minutes later (TI). A single application of 50 mg of mineral concentrate is made to the skin of the cheek and the cheekbone on one side of the face. Thermography measurements of the skin are made by means of a camera positioned 62 cm from the patient's face. The measurement of the circulatory flow is carried out in the dark using a Doppler laser.

This study shows that the application of the mineral concentrate A described in Example 1, to the skin, leads to thermal modifications observed by thermography and by thermoelectric torque. These modifications are observed only 5 minutes after application to the skin. The observed thermal reduction (thermography and thermoelectric pair) proposes that the mineral concentrate of the invention very quickly exerts a shielding effect by decreasing the heat losses on the surface of the skin, without reducing the circulatory flow measured by the Doppler laser. This result is unexpected given that a reduction in circulatory flow could have been anticipated according to the conventional rules of thermoregulation linked to microcirculation. On the contrary, the slight increase in the observed flow is expressed by an energetic action of the vasomotricity induced by the mineral concentrate of the invention. These various tests show that the mineral concentrate according to the invention provides a protective effect against radiation over the wavelength range from ultraviolet to infrared, against skin irritation, anti-oxidant protection, with a surface thermal effect , stimulation of the microcirculation, an absorption capacity of bait without occlusive effect and also perfect tolerance of the skin towards the mineral concentrate without a phenomenon of sensitization. This mineral concentrate constitutes an active principle that has useful properties that make it possible to incorporate it in tal compositions for dermatological or cosmetological use, in a concentration that can be between 1 and 50% by weight with respect to the total weight of the composition, preferably between 1 and 50% by weight. and 20% by weight and more preferably between 2 and 10% by weight for the purpose of protecting the skin or strengthening its natural defenses. According to one embodiment of the present invention, it may be favorable to incorporate, in the composition, a substance that provides a complementary activity that can be used, for example, to promote the synthesis of collagen and, more particularly, a lipopeptide such as palmitoyl- lysyl-threonyl-threonyl-lysyl-serine (MATRIXYL® from Sederma), generally in the form of an aqueous-alcoholic solution. The mineral concentrate can also be used to reinforce the action of other active agents present in such tal compositions to promote skin hydration, sun protection, combating inflammatory phenomena, combating skin aging and, more generally, skin aging. maintenance of good homeostasis. The humidifier or humectant optionally incorporated in the composition may be chosen from humidifiers conventionally used in cosmetic or dermatological compositions, for example a polyol, glycerin (glycerol and glycerol derivative), diglycerin, polyethylene glycol, sorbitol, glyceryl polyacrylates and polymethacrylates, mucopolysaccharides such as hyaluronic acid, chitosan derivatives and pyrrolidonecarboxylic acid derivatives. The content of humidifier or humectant is generally between 0.1 and 10% by weight relative to the total weight of the composition. The usual preservatives of the dermatological or cosmetological compositions can be used in the invention, for example an alcohol such as ethanol, isopropanol and phenoxyethanol, benzoic acid and an alkyl p-hydroxybenzoate such as methyl and propyl p-hydroxybenzoates (methylparaben and propylparaben ), or in addition chlorophenesin or imidazolidinylurea. These preservatives can be used separately or in combination. The composition can be completed by various excipients depending on the nature of the desired phases, such as caprylic glyceride of 8 to 10 carbon atoms / capric (ESTASAN or MIGLYOL 812), or oleic acid, as constituents of the oil phase in the case of an emulsion, or cyclopentasiloxane to improve the feeling properties of the composition. The compositions according to the invention can be in the form of creams, balms, oil-in-water (O / W) emulsions or water-in-oil (/ O) emulsions, gels, serums, masks, ointments or ointments, and preferably in the form of silicone water emulsions or creams or emulsions in oil in water. These various galenic forms are prepared according to the usual techniques. These compositions can be presented in the form of a makeup supplement or care products, for example, lip balm. The following examples illustrate the invention in greater detail without limiting the scope thereof. In these examples of the composition, the parts are expressed by weight, except where otherwise mentioned.

Example 1 Preparation of a mineral concentrate Discharges successively into a 1 1 vessel equipped with a mixer are the following powders: aquamarine (average size 10 μm) 2.5 g tourmaline (average size 10 μm) 15.0 g citrine (average size 10 μm) 7.5 g After carefully mixing the powders for about 15 minutes, the aqueous extracts indicated in the following were introduced: MALAKITE® (aqueous extract having 5.0 g / 1 copper) 15.0 g RHODOLITE® (aqueous extract having 3.0 g / 1 manganese) 30.0 g MALAKITE® was a commercially available aqueous extract of malachite (Gattefossé) which has a copper content greater than 5 g / 1 and of which the solids content was between 5 and 7%. RHODOLITE® was a commercially available aqueous Rhodochrosite extract (Gattefossé) which has a manganese content between 1.0 and 3.5 g / 1 and of which the solids content was between 0.7 and 1.5%. The mixture obtained continued stirring at room temperature for about 15 minutes, in order to form a mineral concentrate, then a gelling agent was added, composed of 2.0 g of a mixture of polyacrylamide, isoparaffin of 13 to 14 carbon atoms and Laureth -7 (SEPIGEL 305®) with the addition of 16.5 g of boron nitride (white powder with an average grain size equal to 2 μm). In this manner, a mineral concentrate A was obtained to which a gelling agent and boron nitride had been added, having the composition by weight in the following expressed in parts by weight: Concentrate A mineral aquamarine 2.5 tourmaline 15.0 citrine 7.5 MALAKITE® 15.0 RHODOLITE® 30.0 glycerin 11.5 gelling agent 2.0 boron nitride 16.5 The gelling agent used was SEPIGEL 305 as for the preceding mineral concentrate.

Mineral B Concentrate By proceeding in the same way, a mineral B concentrate was prepared to which a gelling agent and boron nitride was added, having the following composition expressed in parts by weight: aquamarine 2.5 tourmaline 20.0 citrine 10.0 MALAKITE® 7.5 RHODOLITE® 15.0 glycerin 20.0 boron nitride 25.0 Glycerin was used to absorb water and thicken the composition.

Concentrate C mineral When proceeding in the same way as above, the following mineral concentrate was prepared: aquamarine 7.0 tourmaline 15.0 amethyst 3.0 MALAKITE® 25.0 RHODOLITE® 25.0 glycerin 8.0 gelling agent 2.0 boron nitride 15.0 Concentrate D aquamarine mineral 5.0 tourmaline 15.0 citrine 5.0 MALAKITE® 22.5 RHODOLITE® 22.5 glycerin 11.0 gelling agent 2.5 boron nitride 16.5 Concentrate E mineral aquamarine 5.0 tourmaline 15.0 citrine 5.0 MALAKITE® 22.5 ZIN'CITE® 22.5 glycerin 11.0 gelling agent 2.5 boron nitride 16.5 ZIN'CITE® was a commercially available aqueous extract of smithsonite (Gattefossé) having a zinc content between 1.2 and 2.5 g / 1 and of which the solids content was between 0.4 and 1.0%.

Concentrate F mineral tourmaline 25.0 citrine 0.5 MALAKITE® 5.0 sapphire 10.0 glycerin 30.0 boron nitride 25.0 water .5 Example 2 By the usual techniques, a day cream having the following composition indicated in parts by weight was prepared: concentrate A previous mineral 5.00 EDTA 0.05 PEG 400 3.00 glycerin 4.00 phenoxyethanol 0.80 chlorophenesin 0.10 caprylic / capric triglyceride 6.00 polyisobutene 4.00 CETHYL ALCOHOL ( y) GLYCERYL ESTEARATE (and) PEG-75 (y) stearate CETETH-20 (y) STEARETH-20 4.00 White wax 0.50 macadamia nut oil 1.00 octenyl succinate 1.00 lipoprotein complex 2.00 cyclopentylsiloxane 3.00 sodium acrylate 2.00 water cs for 100.00 This cream was intended to be used when applied to the skin of the face and décolleté once or twice a day, for 6 to 12 weeks. It provides good hydration and excellent protection against environmental attacks, particularly against ultraviolet rays.

Example 3 By the usual techniques, a day cream having the following composition indicated in parts by weight was prepared: concentrate B previous mineral 5.00 propylene glycol 5.00 octyl palmitate 2.00 polyisobutene 7.00 phenoxyethanol 0.80 chlorophenesine 0.20 caprylic / capric triglyceride 6.00 dimethicone 0.20 acrylate / alkyl acrylate crosslinked polymer at 30 carbon atoms 0.30 beeswax 0.50 tocopheryl acetate 0.10 carbomer 0.50 triethanolamine 0.60 MATRIXYL® 2.00 water cs for 100.00 This cream can be used when applied to the face once or twice a day, for 10 weeks and provides good hydration and excellent protection against environmental attacks, particularly against ultraviolet rays.

EXAMPLE 4 By usual techniques, a make-up cleansing milk having the following composition indicated in parts by weight was prepared: concentrate A mineral from above 5.00 glyceryl stearate 4.50 stearic acid 3.00 cetyl palmitate 0.30 polyisobutene 7.00 sorbic acid 0.10 chlorophenesin 0.20 caprylic / capric triglyceride 3.00 monopropylene glycol 3.00 allantoin 0.30 shea butter 0.80 tocopheryl acetate 0.10 sodium alginate 0.30 phenoxyethanol 0.80 triethanolamine 0.60 MATRIXYL® 2.00 water cs for 100.00 This milk was used once a day to remove the makeup from the skin.

Example 5 Correction serum was prepared by the usual manufacturing techniques, having the following composition by weight: concentrate C previous mineral 10.00 chlorophenesin 0.20 CARBOMER® 0.45 glycerin 10.00 triethanolamine 0.80 xanthan gum 0.20 MATRIXYL® 2.00 water q.s. for 100.00 This serum was applied to the skin in the afternoon when massaging towards the face and neck until it penetrated completely, and provides a firmness effect of the skin.

Example 6 A treatment serum containing the mineral concentrate F described in Example 1 and having the following composition was prepared according to a customary method described in the following. POLYSORBATE 20® 2.00 alkylate / alkyl acrylate crosslinked polymer of 10 to 30 carbon atoms (ULTREZ 21®) 0.30 glycerin 5.00 diglycerin 4.00 disodium EDTA 0.10 preservative 1.00 polyvinyl alcohol 0.20 water 20.00 SIMULGEL NS® 1.00 isodecyl neopentanoate 3.00 cetearyl ethylhexanoate 1.00 concentrate F previous mineral 1.00 PLASTIC POWDER D 400® 3.00 cross-linked polymer of methyl methacrylate (MICROPEARL M310®) 3.00 cyclopentasiloxane 7.00 ethyl alcohol 96 ° 3.00 MATRIXYL 3000® 7.00 fragrance 0.50 The emulsifier (POLYSORBATE 20), the gelling agent (ULTREZ 21 ), the humidifier (glycerin, diglycerin), EDTA, polyvinyl alcohol, preservatives (for example, chlorphenesin and phenoxyethanol) and water were mixed at high temperature (40 - 45 ° C) and added to the SIMULGEL mixture, isodecyl neopentanoate and cetearyl ethylhexanoate, and optionally 0.20 parts of 40% sodium hydroxide until a a homogeneous mixture. After cooling to 30-35 ° C with stirring, the mineral concentrate F described in Example 1, and then the other ingredients were added. The MATRIXYL and the fragrances were added at room temperature.

Claims (15)

1. NOVELTY OF THE INVENTION Having described the present invention, it is considered as a novelty and therefore the property described in the following claims is claimed as property. CLAIMS 1. A cosmetic and / or dermatological composition for protecting the skin, characterized in that it comprises, on the one hand, a dry powder or a mixture of dry powders obtained from precious or semi-precious stones containing at least one silicon derivative and, for On the other hand, an aqueous suspension of powders obtained from precious or semiprecious stones containing at least one trace element other than silicon, to form a mineral concentrate, as a mixture with a carrier and physiologically acceptable excipients.
2. 2. The composition according to claim 1, characterized in that it comprises a powder or a mixture of powders containing, on the one hand, a silicon oxide (silica) and / or a silicate and, on the other hand, one or more elements trace
3. 3. The composition according to claim 1 or 2, characterized in that the precious or semiprecious stones are chosen from tourmaline, aquamarine, emerald, citrine, amethyst, malachite, rhodochrosite, smithsonite, lapis lazuli, ruby, sapphire and topaz.
4. 4. The composition according to any of claims 1 and 2, characterized in that the trace element is chosen from iron, copper, zinc, manganese, molybdenum, boron, cobalt, aluminum and selenium.
5. The composition according to claim 1 or 2, characterized in that it comprises at least one powder obtained from precious or semiprecious stones containing a silicon derivative selected from borosilicate, an aluminosilicate and silicon dioxide.
6. 6. The composition according to claim 5, characterized in that the precious or semiprecious stones are chosen from aquamarine, tourmaline, citrine and amethyst.
7. The composition according to claim 1 or 2, characterized in that it comprises at least one powder obtained from precious or semiprecious stones containing a selected trace element of iron, copper, zinc and manganese.
8. The composition according to claim 7, characterized in that the precious or semiprecious stones are chosen from malachite, rhodochrosite and smithsonite.
9. 9. The composition according to any of the preceding claims, characterized in that the particle size of the powders is between 1 μm and 50 μm.
10. The composition according to claim 1, characterized in that it comprises a mixture of dry powders obtained by grinding aquamarine, tourmaline, emerald, citrine and amethyst, and an aqueous suspension of powders obtained by grinding malachite, rhodochrosite and smithsonite, and also a carrier and physiologically acceptable excipients.
11. 11. The composition according to any of the preceding claims, characterized in that it additionally comprises a gelling agent.
12. The composition according to claim 11, characterized in that the gelling agent is chosen from polyacrylamides, acrylate / acrylic acid or acrylamide / acrylamidopropanesulfonic acid copolymers, cellulose derivatives, chitosan, plant mucopolysaccharides and clays.
13. The composition according to claim 12, characterized in that the gelling agent is hydroxypropylcellulose or a mixture of polyacrylamide, isoparaffin of 13 to 14 carbon atoms and Laureth-7.
14. The composition according to any of claims 10 and 11, characterized in that it additionally contains boron nitride.
15. 15. The composition according to any of claims 10 to 14, characterized in that it additionally comprises a sapphire powder.