KR102661967B1 - A cosmetic composition for lips containing Oil/IPDI copolymer that exhibits excellent formulation stability and imparts high gloss and a method for preparing the same - Google Patents

Abstract

This relates to a cosmetic composition for lips containing an oil/IPDI copolymer and a method for manufacturing the same. According to one embodiment of the cosmetic composition for lips, it exhibits significantly excellent formulation stability at all temperature conditions including low temperature, room temperature, and high temperature, and is in excellent condition. The lipstick formulation can be maintained stably, and when applied to the lips, the lipstick formulation undergoes a phase transition into a liquid state, providing a light and smooth application, providing an excellent feeling of use, and also providing a high gloss similar to or higher than that of lip gloss.

Description

A cosmetic composition for lips containing Oil/IPDI copolymer that exhibits excellent formulation stability and imparts high gloss and a method for producing the same preparing the same}

It relates to a cosmetic composition for lips containing an oil/IPDI copolymer that exhibits excellent formulation stability and provides high gloss, and a method for manufacturing the same.

Lip makeup cosmetics to keep your lips healthy and give them color to make them look lively are currently being released in various forms such as lipstick, lip gloss, lip pencil, and lip balm, and the ingredients and contents included in each formulation vary. There is a difference. In general, in lip makeup cosmetics, the feeling of use such as glossiness, coloring power, moisture, durability, and spreadability are considered important factors. Typically, in the case of conventional lipstick cosmetics, they are easy to manufacture and use by having a stick form of a solid formulation, and have the characteristics of excellent coloring power. However, due to the low hardness of the solid formulation, the formulation stability at high temperatures is reduced, so it is in a stick form. It has the disadvantage of being difficult to maintain and lacking in spreadability, moisture, and gloss. In the case of conventional lip gloss cosmetics, it has the characteristics of increased spreadability, moisture, and gloss by having a softer or liquid formulation. However, there are disadvantages such as insufficient coloring power or relatively inconvenience in manufacturing, use, or storage.

Therefore, in order to include all the advantages of lipstick cosmetics and lip gloss cosmetics and minimize the disadvantages of each, the conventional technology has developed a product that has a lipstick formulation, has a gloss similar to lip gloss, and has excellent spreadability that melts into a variety of products. Attempts are being made. In particular, attempts have been made to achieve melting, spreadable, excellent gloss and high adhesion by mixing various types of semi-solid ester ingredients, but in this case, the formulation has the disadvantage of being unstable as it melts at high temperatures (approximately 35 to 50 degrees). Additionally, there is a disadvantage that the higher the amount of semi-solid ester components applied, the more sticky it becomes.

Under this background, the present inventors developed a cosmetic composition for lips containing Oil/IPDI copolymer, and the cosmetic composition for lips showed significantly excellent formulation stability at all temperature conditions including low temperature, room temperature, and high temperature, and was in excellent condition. The lipstick formulation can be maintained stably, and when applied to the lips, the lipstick formulation undergoes a phase transition into a liquid state, providing a light and smooth application that not only provides an excellent feeling of use, but also provides a high gloss similar to or higher than that of lip gloss. This application was completed by confirming that all the advantages of cosmetics and lip gloss cosmetics are included and the disadvantages of each can be minimized.

One aspect is a copolymer of oil and isophorone diisocyanate (IPDI) (Oil/IPDI copolymer); and a fat-soluble component; to provide a cosmetic composition for lips containing a.

Another aspect is to provide a lipstick manufactured by molding the cosmetic composition for lips.

Another aspect is to provide a method for producing the cosmetic composition for lips.

Other objects and advantages of the present application will become clearer from the following detailed description together with the appended claims and drawings. Contents not described in this specification can be fully recognized and inferred by a person skilled in the technical field of this application or a similar technical field, so description thereof is omitted.

Each description and embodiment disclosed in this application may also be applied to each other description and embodiment. That is, all combinations of the various elements disclosed in this application fall within the scope of this application. Additionally, the scope of the present application cannot be considered limited by the specific description described below.

One aspect is a copolymer of oil and isophorone diisocyanate (IPDI) (Oil/IPDI copolymer); It provides a cosmetic composition for lips containing; and a fat-soluble component.

The copolymer of oil and isophorone diisocyanate (IPDI) (Oil/IPDI copolymer) may mean that oil and isophorone diisocyanate are chemically polymerized or connected to form a copolymer.

The copolymer of the oil and isophorone diisocyanate is "Oil/IPDI copolymer", "Oil/IPDIcopolymer", "Oil/IPDI copolymer", "Oil/IPDI copolymer", "Oil/IPDI copolymer" It can be used interchangeably with terms such as:

The isophorone diisocyanate may be a compound having the structure of Formula 1 below:

[Formula 1]

.

The molecular formula of the isophorone diisocyanate is C ₁₂ H ₁₈ N ₂ O ₂ , and the molecular weight may be about 220 to 230 g/mol.

The Oil/IPDI copolymer can be manufactured by conventional manufacturing techniques capable of polymerizing oil and isophorone diisocyanate, and the manufacturing techniques are not particularly limited. Specifically, the Oil/IPDI copolymer can be prepared by any method known in the art that can polymerize oil and isophorone diisocyanate, for example, alternating copolymer, block copolymer, stereoblock copolymer, random copolymer, It can be manufactured by methods such as branched copolymer, brush copolymer, and star copolymer, but is not limited thereto. Additionally, the Oil/IPDI copolymer may be sold commercially in the industry.

The Oil/IPDI copolymer may be one in which oil and isophorone diisocyanate are connected or polymerized by forming an ionic bond with oil at least one of the functional groups included in isophorone diisocyanate, and is limited thereto. That is not the case. The ionic bond that connects or polymerizes the oil and isophorone diisocyanate has a bonding strength that is easily dissociated by physical force, and may be a reversible bond in which the ionic bond is formed again when the physical force is removed.

In the Oil/IPDI copolymer, the oil linked or polymerized with isophorone diisocyanate is PEG-100, Bis-HEA poly (hexamethylene/methylpentylene carbonate), polyglyceryl-2 diisostearate, Bis-hydroxyethyl acrylate poly (1,4-butanediol)-9, bis-hydroxyethyl acrylate poly (neopentyl glycol adipate), bis-HEM poly (1,4-part) Thanediol)-22, Bis-HEM Poly (caprolactone neopentyl glycol), Bis-HEM Poloxamer 251, Bis-HEA Poly (glycol/1,4-butanediol adi) pate), bis-hydroxypropyl methacrylate poly (1,4-butanediol)-9, glyceryl diricinoleate, glycereth-7, dilinoleyl alcohol, dihydroxyethyl tallowamine , bis-methylisocytosine hydrogenated polybutadiene, bis-hydroxyethoxypropyldimethicone/PEG-2soiamine, bis-PEG-1 dimethicone/PPG-26, bis- Aminopropyl Dimethicone, Propylene Glycol Diricinoleate, PEG-200 Hydrogenated Castor Oil, Bis-Hemapolyneopentyl Glycol Adipate, Bis-PEG-15 Dimethicone, Bis-H EMA Poly (1,4-butanediol)-9, polydiethylene glycol adipate, glycerol-7 hydroxystearate, dimethiconol, polyglyceryl-2 diisostearate, castor oil , bis-hydroxyethoxypropyl dimethicone, bis-hydroxylauryl dimethicone, and bispPG-15 dimethicone, but is not limited thereto. The oil may be any fat-soluble substance that can be linked or polymerized with the isophorone diisocyanate through an ionic bond to form a copolymer, without limitation.

The Oil/IPDI copolymer is PEG-100/IPDIcopolymer, Bis-HEA poly(hexamethylene/methylpentylene carbonate)/IPDIicopolymer, polyglyceryl-2diisostearate/IPDIicopolymer. Polymer, bis-hydroxyethyl acrylate poly(1,4-butanediol)-9/IPDIcopolymer, bis-hydroxyethyl acrylate poly(neopentyl glycol adipate)/IPDIicopolymer, Bis-HEM Poly(1,4-butanediol)-22/IPDI Copolymer, Bis-HEMA Poly(caprolactone neopentyl glycol)/IPDI Copolymer, Bis-HEMA Poloxamer 251/IPDI copolymer, bis-HEA poly(glycol/1,4-butanediol adipate)/IPDI copolymer, bis-hydroxypropyl methacrylate poly(1,4-part) Tein Diol)-9/IPDI Aicopolymer, Glyceryl Diricinoleate/IPDI Aicopolymer, Glycereth-7/IPDI Aicopolymer, Dilinoleyl Alcohol/IPDI Aicopolymer, Dihydroxyethyl Tal Lowamine/IPDIicopolymer, Bis-methylisocytosine hydrogenated polybutadiene/IPDIicopolymer, Bis-hydroxyethoxypropyldimethicone/PEG-2soiamine/IPDIicopolymer, Bis-PEG-1 Dimethicone/PPG-26/IPDI Copolymer, Bis-Aminopropyl Dimethicone/IPDI Copolymer, Propylene Glycol Diricinoleate/IPDI Copolymer, PEG- 200 Hydrogenated Castor Oil/IPDI Copolymer, Bis-Hemapoly Neopentyl Glycol Adipate/IPDI Copolymer, Bis-PEG-15 Dimethicone/IPDI Copolymer, Bis-HEM Polymer (1,4-butanediol)-9/IPDIcopolymer, polydiethylene glycol adipate/IPDIicopolymer, glycereth-7hydroxystearate/IPDIicopolymer, dimethiconol/ IPDI Aicopolymer, polyglyceryl-2 diisostearate/IPDI Aicopolymer, castor oil/IPDI Aicopolymer, bis-hydroxyethoxypropyl dimethicone/IPDI Aicopolymer, bis-hydroxylauryl It may be one or more selected from the group consisting of dimethicone/IPDI copolymer, and BPG-15 dimethicone/IPDI copolymer, but is not limited thereto. Preferably, the Oil/IPDI copolymer may be CastorOil/IPDI Copolymer (CastorOil/IPDI Copolymer or Castor Oil/IPDI Copolymer), but is not limited thereto. The Castor Oil/IPDI Copolymer (CastorOil/IPDI Copolymer or Castor Oil/IPDI Copolymer) is I.N.C.I. As a (International Nomenclature of Cosmetic Ingredients) name, the CAS registration number may be 68955-90-8.

According to one embodiment, the lip cosmetic composition includes the Oil/IPDI copolymer, so that when it does not contain the Oil/IPDI copolymer (for example, a different type of gelling agent is used instead of the Oil/IPDI copolymer) (if included) may exhibit superior surface gloss, ability to impart gloss, feeling of use, or formulation stability.

In the lip cosmetic composition, the Oil/IPDI copolymer may be included as a gelling agent. Additionally, the oil/IPDI copolymer may have a melting point of about 100°C or higher. Therefore, the oil/IPDI copolymer may melt at a temperature of about 100°C or higher and change its physical properties into a liquid form, and maintain a solid or gel-like form at a temperature below about 100°C, specifically, at a temperature below about 70°C. It may be possible. Therefore, according to one embodiment, in manufacturing the lip cosmetic composition, the Oil/IPDI copolymer and oil are dissolved at a temperature of about 100° C. or higher to form a hydrogen bond between the Oil/IPDI copolymer. ) After trapping the oil between or inside the oil, it can be gradually increased by lowering the temperature to induce solidification or gelation. For this reason, the oil contained in the lip cosmetic composition may be gelled by the Oil/IPDI copolymer.

Therefore, in the case of the lip cosmetic composition, the Oil/IPDI copolymer forms a solid or gel-like formulation (e.g. , lipstick formulation) can be maintained very stably and also exhibits thixotropic properties, so when applied to the lips, the solid or gel formulation changes into a liquid phase due to physical force and applies lightly and smoothly as if melting. can exhibit excellent spreadability. On the other hand, in the case of lip cosmetics containing conventional semi-solid ester components, there is a problem in that the lipstick formulation melts and the hardness decreases at a temperature of about 35-40°C, making the formulation stability significantly unstable. In the case of the composition, by including the Oil/IPDI copolymer, it has excellent lipstick formulation stability even at room temperature and high temperature (25-55°C) and also has excellent spreadability when applied to the lips, thereby solving the problems of the prior art.

In other words, the lip cosmetic composition may have thixotropic properties by including the Oil/IPDI copolymer.

The term “thixotropy” refers to the property that when an external force, such as shaking or mixing, is applied to a high-concentration colloidal solution or polymer solution, fluidity increases due to shear force, etc. on the solution, and fluidity decreases when the external force is removed.

In other words, the lip cosmetic composition may have thixotropic properties due to the characteristic that the ionic bond of the Oil/IPDI copolymer contained in the composition is reversibly dissociated by physical force. In other words, when a physical external force is applied to the cosmetic composition for the lips, the ionic bond of the Oil/IPDI copolymer contained in the composition is dissociated, thereby applying a shear force to the composition, thereby increasing the fluidity of the composition, and the physical external force is removed. If the ionic bond of the Oil/IPDI copolymer contained in the composition is reformed, shear force, etc. will not be applied to the composition, and the fluidity of the composition may decrease again.

Therefore, as described above, the cosmetic composition for lips may have thixotropic properties and therefore phase transition properties. According to one embodiment, in the case of the lip cosmetic composition, by including the Oil/IPDI copolymer, when physical force is applied, a phase transition occurs from a solid formulation or gel formulation to a liquid formulation, and when the physical force is removed, a certain period of time elapses. It can exhibit reversible phase transition properties that restore it to its original form after use. That is, when the cosmetic composition for lips is applied to the lips, the formulation of the composition changes from a solid or gel phase to a liquid phase due to physical force, and after application to the lips, after a certain period of time (e.g., about 0.5 minutes to 3 hours, After about 0.5 minutes to 1 hour, about 0.5 minutes to 30 minutes, about 0.5 minutes to 10 minutes, or about 0.5 minutes to 5 minutes), the formulation of the composition is restored to the solid phase or gel phase, which has a reversible phase transition property. It could be.

Therefore, due to the property of the cosmetic composition for lips, which undergoes a reversible phase transition due to physical force, even if it has a lipstick formulation, it can exhibit excellent spreadability due to a rapid phase transition to a liquid phase when applied to the lips, and can exhibit excellent spreadability due to formulation restoration after application. It has excellent adhesion, coloring power, and application uniformity, resulting in a significantly improved feeling of use. It also has excellent moisturizing power by preventing moisture evaporation. In addition, the reversible phase transition property of the lip cosmetic composition can significantly increase convenience of use when discharged from a container, stored in a container, or applied to the lips.

The Oil/IPDI copolymer included in the lip cosmetic composition may be included in an amount of more than about 1 to less than 8% by weight based on the total weight of the composition. Specifically, the Oil/IPDI copolymer included in the lip cosmetic composition may be included in about 2 to 6% by weight or about 2.5 to 5% by weight based on the total weight of the composition. According to one embodiment, when the content of the Oil/IPDI copolymer contained in the lip cosmetic composition is outside the above numerical range, the surface gloss, gloss imparting ability, feeling of use, or formulation stability of the lip cosmetic composition may be affected. may decrease significantly.

The cosmetic composition for lips may further include a paste compound. The paste compound may refer to a compound that increases the viscosity or adhesion of the composition (eg, a thickener, a viscosity increasing agent, or an adhesion component). For example, the paste compound may be a compound that contributes to formulating the composition into a solid or semi-solid form by increasing the viscosity or adhesiveness of the composition. The paste compound may be water-soluble or oil-soluble, and may function to further increase the formulation stability, gloss, or feeling of use such as spreadability of the lip cosmetic composition.

The paste compound is bis-behenyl/isostearyl/phytosteryl dimer dilinoleyl dimer dilinoleate, bis-diglyceryl polyacyl adipate-2, phytosteryl/isostearyl/cetyl/ste It may be one or more selected from the group consisting of aryl/behenyl dimer dilinoleate, phytosteryl/octyldodecyllauroylglutamate, and phytosteryl/behenyl/octyldodecyllauroylglutamate, but is not limited thereto. . Preferably, the lip cosmetic composition contains, as a paste compound, bis-behenyl/isostearyl/phytosteryl dimer dilinoleyl dimer dilinoleate and bis-diglyceryl polyacyl adipate-2. It may include, but is not limited to this. At this time, the weight ratio of bis-behenyl/isostearyl/phytosteryl dimer dilinoleyl dimer dilinoleate and bis-diglyceryl polyacyl adipate-2 contained in the lip cosmetic composition is about 1: It may be 2 to 4 or about 1:3. According to one embodiment, the weight ratio of bis-behenyl/isostearyl/phytosteryl dimer dilinoleyl dimer dilinoleate and bis-diglyceryl polyacyl adipate-2 contained in the lip cosmetic composition If it falls within the above numerical range, the surface gloss, ability to impart gloss, feeling of use, or formulation stability of the cosmetic composition for lips may be relatively increased, and if it falls outside the numerical range, the cosmetic composition for lips The surface gloss, ability to impart gloss, feeling of use, or formulation stability may be relatively reduced.

The cosmetic composition for lips may include about 30 to 50, 35 to 45, or 40% by weight of the paste compound based on the total weight of the composition. According to one embodiment, when the content of the paste compound contained in the cosmetic composition for lips is outside the above numerical range, the surface gloss, ability to impart gloss, feeling of use, or formulation stability of the cosmetic composition for lips may decrease. there is.

The fat-soluble ingredients included in the lip cosmetic composition may include wax, oil, etc., but are not limited thereto.

The wax may be a synthetic wax and/or a wax derived from natural products. Additionally, the wax may have a melting point of about 85 to 100°C. The natural product-derived wax may be, for example, one or more types selected from the group consisting of plant-based wax, animal-based wax, mineral-based wax, and petroleum-based wax. In a more specific example, examples of the natural product-derived wax include plant-based waxes such as candelina wax, carnauba wax, rice wax, and beeswax; Animal waxes such as beeswax and lanolin; Mineral waxes such as ozokerite and ceresin; and petroleum-based waxes such as microcrystalline wax, but are not limited thereto. According to one embodiment, the wax included in the lip cosmetic composition may not include synthetic wax, for example, wax that is not derived from natural products and manufactured through a chemical synthesis method. According to one embodiment, when the cosmetic composition for the lips does not contain synthetic wax as a wax and only contains wax derived from natural products, the surface gloss, ability to impart gloss, feeling of use, or formulation stability of the cosmetic composition for the lips are relative to each other. can increase further.

The cosmetic composition for lips may include about 1 to 10, 2 to 9, 3 to 8, 4 to 7, or 6% by weight of the wax based on the total weight of the composition. According to one embodiment, when the content of the wax contained in the cosmetic composition for the lips is outside the above numerical range, the surface gloss, ability to impart gloss, feeling of use, or formulation stability of the cosmetic composition for the lips may decrease. .

In particular, in cosmetic compositions for lips, wax contributes to the hardness of the composition formulation, forming a molded structure, and formulation stability, but when contained in a high content, it can significantly reduce the feeling of use of the composition, so appropriate content control is necessary. In the case of the lip cosmetic composition, the oil/IPDI copolymer and/or paste compound is included in a controlled amount and/or weight ratio while lowering the wax content to a level for implementing a stick formulation with minimum hardness. , Although it has a low hardness formulation, the formulation stability is significantly excellent at all low temperature, room temperature, and high temperature, so a lipstick formulation that stably maintains the stick shape can be implemented.

The oil included in the lip cosmetic composition may be one or more oils selected from the group consisting of silicone oil, ester oil, vegetable oil, animal oil, and mineral oil, but is not limited thereto. The oil included in the lip cosmetic composition can function as a skin conditioning agent (emollient) and provide excellent gloss.

The silicone oils include cyclomethicone, cyclopentasiloxane, cyclohexasiloxane, phenyltrimethicone, dimethicone, dimethicol, cetyldimethicone, caprylylmethicone, amodimethicone, methyltrimethicone, and PC. ADmethicone, trisiloxane, etc., and ester oils include dibutyl adipate, caprylic/capric glyceride, caprylic/capric triglyceride, tridecyl trimellitate, and polyglyceryl-2. Triisostearate, pentaerythrityl adipate/caprate/caprylate/heptanoate, cetearyl ethylhexanoate, isopropyl myristate, isocetyl stearate, octyldodecanol, methyl perfluoro Isobutyl ether, C12-15 alkyl benzoate, triethylhexanoin, cetyl ethylhexanoin, cholesteryl hydroxystearate, diisostearyl maleate, isotridecyl isononanoate, isononylsononano ate, neopentyl glycol dicaprate, di-C12-13 alkylmalate, butylene glycol dicaprylate/dicaprate, butyloctyl salicylate, hydrogenated poly (C6-14 olefin), hydrogenated Polydecene, cetyl ethylhexanoate, tribehenin, tricaprylin, diethoxyethyl succinate, etc., and the vegetable oils include olive oil, jojoba seed oil, avocado oil, macadamia seed oil, and rosehip fruit. Oil, meadowfoam seed oil, tea tree leaf oil, vegetable squalane, vegetable squalane, grape seed oil, rice bran oil, sweet almond oil, American hazelnut oil, sea buckthorn oil, camellia oil, apricot oil, kimchi palm oil, sunflower seed oil , baja oil, etc., the animal oils include horse fat, mink oil, egg yolk oil, animal squalane, animal squalane, etc., and the mineral oils include mineral oil, isododecane, polybutene, petrolatum, etc. It is not limited to this. According to one embodiment, the oil may not include a gelling agent including the Oil/IPDI copolymer, the wax, and the paste compound.

The cosmetic composition for lips contains about 35 to 70, 35 to 65, 35 to 60, 35 to 55, 35 to 53, 40 to 70, 40 to 65, 40 to 60, and 40 to 40 based on the total weight of the composition. It may contain 55, 40 to 53, or 40 to 50% by weight. According to one embodiment, when the content of the oil contained in the cosmetic composition for lips is outside the above numerical range, the surface gloss, ability to impart gloss, feeling of use, or formulation stability of the cosmetic composition for lips may decrease. .

The lip cosmetic composition may further include a water-soluble or oil-soluble gelling agent in addition to the Oil/IPDI copolymer. As the gelling agent, hectorite, disteadimonium hectorite, dextrin palmitate, silica, or hydrogenated styrene/isoprene copolymer may be used depending on the characteristics of the formulation, but are not limited thereto. The gelling agent may function to thicken the oil and improve the formulation stability of the composition.

The lip cosmetic composition may further include a surfactant and/or an aqueous phase component (water-soluble component), but is not limited thereto. For example, the lip cosmetic composition contains one or more ingredients selected from the group consisting of water-soluble or oil-soluble surfactants (e.g., emulsifiers, solubilizers, dispersants, etc.), preservatives (or preservatives), pigments (colorants), and fragrances. It may include more, but is not limited thereto.

The dispersant may include sorbitan sesquioleate, sorbitan stearate, cetyl PEG/PPG-10/1 dimethicone, PEG-10 dimethicone, etc., but is not limited thereto.

The preservative (or preservative) may be 1,2-hexanediol, ethylhexylglycerin, glyceryl caprylate, caprylyl glycol, hydroxyacetophenone, etc., but is not limited thereto.

The above pigments (pigments) include organic pigments such as Red No. 104 (1), Red No. 202, Yellow No. 5, Yellow No. 4, and Blue No. 1; Inorganic pigments such as titanium dioxide, red iron oxide, yellow iron oxide, and black iron oxide can be used, but are not limited thereto.

The above fragrances may include natural fragrances, vegetable fragrances, combined fragrances, essential oils, etc., but are not limited thereto.

The cosmetic composition for the lips may be formulated in a stick form (specifically, in the form of a lipstick), but is not limited thereto, and may be formulated in various forms such as lip balm, lip cream, lip pencil, liquid rouge, or lip gloss.

The cosmetic composition for lips may exhibit an effect of improving formulation stability, or an effect of improving feeling of use or gloss. According to one embodiment, the cosmetic composition for lips includes the Oil/IPDI copolymer and/or adjusts its content, so that formulation stability, feeling of use, or gloss can be significantly improved. In addition, according to one embodiment, the cosmetic composition for lips improves formulation stability, feeling of use, or Glossiness can be further improved.

The cosmetic composition for lips may be used for lip makeup (e.g., for lip color makeup or for imparting lip gloss), for maintaining lip moisture, or for improving lip keratin, but is not limited thereto.

The lip cosmetic composition includes purified water, carrier, emulsifier, dispersant, moisturizer, preservative, skin conditioning agent, sunscreen, antioxidant, surfactant, preservative, chelating agent, antioxidant, disinfectant, stabilizer, pH adjuster, lubricant, It may further include additives selected from the group consisting of solubilizers, solvents, colorants (pigments), and combinations thereof, but is not limited thereto. In addition, the cosmetic composition for the lips may further include, as an additive, a material that can supplementally provide essential nutrients to the lips or a material that improves the condition of the lips, such as a functional material that has effects such as moisturizing or improving dead skin cells. The cosmetic composition for the lips may further include auxiliaries including, but not limited to, fragrances (eg, natural fragrances or cosmetic fragrances) or plant extracts.

The content of the above additives or auxiliaries can be easily selected by a person skilled in the art, and the mixing amount may be included in an amount generally used in the cosmetics or dermatological fields. There are no particular restrictions on the method of adding the additives or auxiliaries, so they can be added to the cosmetic composition in an appropriate manner. For example, some may be added to the oil phase or aqueous phase, and some may be added after the emulsion or gel formulation is prepared.

The cosmetic composition for lips can be manufactured in any formulation commonly manufactured in the art using methods known in the art. Specifically, the cosmetic composition for lips may be in a liquid type, solid type, balm, cream, gel, lipstick, or paste formulation, but is not limited thereto. Preferably, the cosmetic composition for lips may be a lipstick, lip balm, lip cream, lip pencil, liquid rouge, or lip gloss formulation, but is not limited thereto.

Another aspect provides a lipstick manufactured by molding the lip cosmetic composition.

The lip cosmetic composition and lipstick (or lipstick formulation) are as described above.

The method of molding the lip cosmetic composition for producing the lipstick or the method of manufacturing the lipstick by molding the lip cosmetic composition may be performed according to general methods known in the art, but are not limited thereto.

Among the terms or elements mentioned in the lipstick, the same as those mentioned in the description of the composition are understood to be the same as previously mentioned in the description of the composition.

Another aspect provides a method of manufacturing the cosmetic composition for lips.

The cosmetic composition for lips is as described above.

The method includes (1) mixing Oil/IPDI copolymer and oil; and (2) adding wax to the mixture obtained in step (1) and mixing it.

Step (1) of the method may be performed at a temperature of about 100°C or higher. In step (1) of the method, the Oil/IPDI copolymer is mixed in a completely dissolved state in the oil at a temperature of about 100°C or higher, and at this time, the hydrogen bond formed in the Oil/IPDI copolymer The oil may be supported between or inside. For this reason, when the temperature is lowered, the temperature may increase and gelation of the oil may be induced.

In step (1) of the method, an additional gelling agent may be added and mixed in addition to the Oil/IPDI copolymer.

In step (2) of the method, one or more ingredients selected from the group consisting of a paste compound, a surfactant (eg, a dispersant), and a preservative (or preservative) may be additionally added and mixed. Alternatively, the method may further include adding and mixing one or more ingredients selected from the group consisting of a paste compound, a surfactant (e.g. a dispersant), and a preservative (or preservative) into the mixture obtained in step (2). there is.

The method may further include adding a pigment (colorant) to the obtained mixture and mixing (or coloring) the mixture. The method may further include adding fragrance to the obtained mixture and mixing (or flavoring) it. The method may further include the step of degassing and/or cooling the obtained mixture. The method may further include the step of molding the finally obtained cosmetic composition to produce a lipstick.

In the above method, the specific type, mixing weight percentage, or mixing weight ratio of each component is as mentioned in the description of the lip cosmetic composition.

In the above method, specific manufacturing conditions and methods may be based on conventional techniques, but are not limited thereto. Meanwhile, optionally added additives and/or auxiliaries may be added at an appropriate stage among the above steps, as needed.

Among the terms or elements mentioned in the manufacturing method, the same as those mentioned in the description of the composition or the lipstick are understood to be the same as previously mentioned in the description of the composition or the lipstick.

According to a cosmetic composition for lips containing an Oil/IPDI copolymer according to one aspect, it exhibits significantly excellent formulation stability at all temperature conditions of low temperature, room temperature, and high temperature, so that a lipstick formulation in excellent condition can be stably maintained, and the lipstick formulation can be stably maintained in excellent condition. When applied, the lipstick formulation undergoes a phase transition into a liquid phase, providing a light and smooth application that not only provides an excellent feeling of use, but also provides a high gloss similar to or higher than that of lip gloss. Therefore, according to the cosmetic composition for lips containing an oil/IPDI copolymer according to one aspect, it includes all the advantages of lipstick cosmetics and lip gloss cosmetics and minimizes the disadvantages of each, so that it is easy to manufacture, use, and store, and has excellent coloring power. While taking advantage of the formulation and advantages of lipstick cosmetics, it is possible to significantly improve the problems of conventional lipstick cosmetics such as unstable high temperature formulation stability, lack of spreadability, moisture, or gloss.

Figure 1 is a diagram showing the results of evaluating formulation stability by visually observing the appearance of a cosmetic composition for lips according to an example after storing it at high temperature (55°C) for about 4 weeks.

Hereinafter, the present invention will be described in more detail through experimental examples and examples. However, these experimental examples and examples are for illustrative purposes only and the scope of the present invention is not limited to these experimental examples and examples.

In addition, unless there is a special definition in this specification, all scientific and technical terms used in this specification may have the same meaning as commonly understood by a person skilled in the art in the technical field to which the present invention pertains.

Example 1. - Example 2. Preparation of cosmetic composition for lips containing Oil/IPDI copolymer

A cosmetic composition for lips containing a copolymer of oil and isophorone diisocyanate (IPDI) (Oil/IPDI copolymer) was prepared.

Specifically, a stick-type lip product containing CastorOil/IPDI Copolymer (CastorOil/IPDI Copolymer or Castor Oil/IPDI Copolymer) as an Oil/IPDI copolymer and other waxes, paste compounds, and oils. Cosmetic compositions (Examples 1 and 2) were prepared. In addition, as a comparative example, stick-type lip cosmetic compositions (Comparative Examples 1 to 4) having different component composition and content compared to the cosmetic composition of the above example were prepared. The specific composition and content of the cosmetic compositions are shown in Table 1 below.

The specific method for producing the cosmetic composition of Table 1 includes the following steps, and the specific content of each ingredient is shown in Table 1:

(1) Adding the oil and gelling agent in Table 1 to the production unit and then mixing (heating and dissolving while stirring) at a temperature of about 100°C or higher;

(2) Adding the wax, paste compound, dispersant, and preservative of Table 1 to the mixture obtained in step (1) above, then mixing (heating and dissolving while stirring) at a temperature of about 85°C or higher; and

(3) Adding pigments (colorants) from Table 1 to the mixture obtained in step (2) to adjust color, adding fragrances from Table 1 to flavor, degassing and cooling to produce lipstick.

Experimental Example 1. Sensory evaluation of cosmetic composition for lips containing oil/IPDI copolymer

The cosmetic compositions of Examples and Comparative Examples in Table 1 prepared above were subjected to sensory evaluation for feeling of use and gloss.

Specifically, each sample of the cosmetic composition of the Examples and Comparative Examples in Table 1 prepared above was applied three or more times to the lips of a 25-35 year old female panel with at least 3 years of makeup experience, and then the test results were measured including spreadability, moisture, coloring power, etc. Satisfaction was evaluated for each item regarding the overall feeling of use and glossiness. Each individual item was evaluated out of 10 (very good: 10 points, good: 8 points, average: 6 points, poor: 4 points, very poor: 2 points), and the average of the scores evaluated by the panelists was derived. The results are shown in Table 2.

Evaluation items Comparative Example 1 Comparative Example 2 Comparative Example 3 Example 1 Example 2 Comparative Example 4 feeling of use 4 5 5 8 10 4 glossiness 4 5 6 8 10 4 bout 8 10 11 16 20 8

As a result, as shown in Table 2, it was confirmed that Examples 1 and 2 showed higher satisfaction in terms of overall feel and gloss, including spreadability, moisture, and coloring power, compared to Comparative Examples 1 to 4. In particular, It was confirmed that Example 2 showed the highest level of satisfaction in terms of feeling of use and gloss.

Through this experimental example, in the case of the cosmetic composition of the examples in Table 1 containing the Oil/IPDI copolymer as a gelling agent, and in the case of not containing the Oil/IPDI copolymer (Comparative Examples 1 and 2 in Table 1 above) ), it was found that it had a better feeling of use and an effect of providing gloss. In particular, in the case of the cosmetic composition of the examples in Table 1, the Oil/IPDI copolymer is included in an amount of more than about 1 to less than 8% by weight (specifically, about 2 to 6% by weight or about 2.5 to 5% by weight). By doing so, it exhibits excellent feeling of use and effect of providing gloss, while in the case of cosmetic compositions where the content of the Oil/IPDI copolymer is outside the above numerical range (Comparative Examples 3 and 4 in Table 1 above), the feeling of use is significantly reduced or the effect of providing gloss is significantly reduced. It was found that there was a significant decrease. In addition, in the case of the cosmetic composition of Example 2 of Table 1, which does not contain synthetic wax as a wax component and contains only wax derived from natural products, the feeling of use is further increased compared to the cosmetic composition of Example 1 of Table 1, which contains synthetic wax. And it was confirmed that it exhibits a gloss-imparting effect. Through this, it was confirmed that, in manufacturing the lip cosmetic of the present invention, when it is manufactured to contain only natural wax and not synthetic wax as a wax component, the feeling of use and gloss are improved. It was found that it could be increased.

In addition, in the case of the cosmetic composition of the example in Table 1, that is, a cosmetic composition for lips in a lipstick formulation containing the Oil/IPDI copolymer, a phase transition from a solid phase to a liquid phase occurs when a physical force is applied by the Oil/IPDI copolymer. It may have a thixotropy property in which lipstick formulation occurs, and because of this, when the cosmetic composition for lips in the lipstick formulation is applied to the lips, the lipstick formulation undergoes a phase transition into a liquid phase to provide a light and soft application, providing an excellent feeling of use and at the same time high gloss. It was found that it was possible to give a feeling.

Experimental Example 2. Evaluation of glossiness of cosmetic composition for lips containing oil/IPDI copolymer

The surface glossiness of the cosmetic compositions of the Examples and Comparative Examples in Table 1 prepared above was evaluated.

Specifically, using the VS3200 Color Meter manufactured by INTATEK, the surface glossiness of each of the cosmetic compositions of the Examples and Comparative Examples in Table 1 prepared above was evaluated when applied to a flat plate. Specifically, a certain amount of each of the cosmetic compositions of the Examples and Comparative Examples of Table 1 prepared above was solidified on a flat plate, and then the hardened composition was rubbed on the flat plate with a certain force to shine the surface of the flat plate. Afterwards, using the Gloss of the Color Meter, light was irradiated onto the flat surface on which the cosmetic composition was applied at a reflection angle of about 60 degrees, and the gloss was measured by measuring the amount of reflection (repeated measurement three times) (after deriving the average value), the results are shown in Table 3 (a higher value means better gloss).

division Comparative Example 1 Comparative Example 2 Comparative Example 3 Example 1 Example 2 Comparative Example 4 Glossiness 35 42 50 65 70 40

As a result, as shown in Table 3, it was confirmed that Examples 1 and 2 had significantly superior surface gloss compared to Comparative Examples 1 to 4, and in particular, Example 2 had the best surface gloss. .

Through this experimental example, in the case of the cosmetic composition of the examples in Table 1 containing the Oil/IPDI copolymer as a gelling agent, and in the case of not containing the Oil/IPDI copolymer (Comparative Examples 1 and 2 in Table 1 above) ), it was found to exhibit better gloss than that of In particular, in the case of the cosmetic composition of the examples in Table 1, the Oil/IPDI copolymer is included in an amount of more than about 1 to less than 8% by weight (specifically, about 2 to 6% by weight or about 2.5 to 5% by weight). As a result, while exhibiting significantly excellent gloss, it was found that in the case of cosmetic compositions where the content of the Oil/IPDI copolymer was outside the above numerical range (Comparative Examples 3 and 4 in Table 1 above), the gloss was significantly reduced. . In addition, unlike the cosmetic composition of the examples in Table 1, it does not contain a gelling agent itself, but contains the paste compounds bis-behenyl/isostearyl/phytosteryl dimerdilinoleyldimerdilinoleate and bis- It was confirmed that the cosmetic composition of Comparative Example 1 of Table 1, where the weight ratio of diglycerylpolyacyl adipate-2 was outside of about 1:2 to 4, exhibited the lowest gloss. Through this, it was confirmed that the composition of the present invention In manufacturing lip cosmetics, not only is the addition and content of the Oil/IPDI copolymer controlled, but also the paste compound bis-behenyl/isostearyl/phytosteryl dimer dilinoleyl dimer dilinoleate. It was found that when the weight ratio of bis-diglycerylpolyacyl adipate-2 was adjusted to about 1:2 to 4, glossiness could be further increased. In addition, in the case of the cosmetic composition of Example 2 of Table 1, which does not contain synthetic wax as a wax component and contains only natural wax, the gloss was further increased compared to the cosmetic composition of Example 1 of Table 1, which contains synthetic wax. It was confirmed that the lip cosmetic of the present invention does not contain synthetic wax as a wax component, but contains only natural wax, the gloss can be further increased. And it was found.

Therefore, the cosmetic composition of the examples in Table 1, that is, the cosmetic composition for lips in a lipstick formulation containing the Oil/IPDI copolymer, exhibits significantly excellent surface gloss, so that when applied to the lips, it is at a level similar to that of lip gloss or better. It was found that high gloss could be provided at the above level.

Experimental Example 3. Evaluation of formulation stability of lip cosmetic composition containing oil/IPDI copolymer

The cosmetic compositions of Examples and Comparative Examples in Table 1 prepared above were stored for a long period of time under various temperature conditions and changes in hardness and appearance over time were measured to evaluate formulation stability.

Specifically, the cosmetic compositions of the Examples and Comparative Examples of Table 1 prepared above were stored at -18°C, 4°C, 25°C, 45°C, 55°C, and Cycle (-10°C, 4°C, 25°C, 45°C, 25°C). ℃, 4℃, -10℃ (cycled for 6 hours at each temperature condition) and stored for about 12 weeks at each temperature condition, 0 days, 1 week, 2 weeks, 4 weeks, and 8 weeks. , and at 12 weeks, the hardness of each composition was measured using a CR-100 Rheometer manufactured by SUN SCIENTIFIC, and the results are shown in Tables 4 to 9 below. Additionally, the external appearance of each composition was observed with the naked eye and the results were reported. It is shown in Figure 1.

-18℃ storage Comparative Example 1 Comparative Example 2 Comparative Example 3 Example 1 Example 2 Comparative Example 4 0 days 48 47 47 45 48 50 1 week 30 35 40 41 40 42 2 weeks 25 32 38 40 42 42 4 weeks 22 32 37 39 41 41 8 weeks 20 30 35 39 40 40 12 weeks 18 25 32 38 48 42

Store at 4℃ Comparative Example 1 Comparative Example 2 Comparative Example 3 Example 1 Example 2 Comparative Example 4 0 days 47 47 47 45 48 50 1 week 25 33 39 38 47 44 2 weeks 22 32 38 38 47 44 4 weeks 20 32 37 36 43 42 8 weeks 20 21 33 36 45 42 12 weeks 20 23 32 33 44 43

Store at 25℃ Comparative Example 1 Comparative Example 2 Comparative Example 3 Example 1 Example 2 Comparative Example 4 0 days 47 47 46 45 48 48 1 week 18 24 25 40 50 49 2 weeks 11 26 27 42 45 50 4 weeks 10 29 25 37 47 49 8 weeks 8 21 21 35 48 45 12 weeks 8 19 20 33 44 45

Store at 45℃ Comparative Example 1 Comparative Example 2 Comparative Example 3 Example 1 Example 2 Comparative Example 4 0 days 47 47 46 45 48 48 1 week 24 20 24 38 40 48 2 weeks 15 15 17 35 38 45 4 weeks 11 15 16 30 42 40 8 weeks 9 15 14 31 38 42 12 weeks 10 10 12 30 40 42

Store at 55℃ Comparative Example 1 Comparative Example 2 Comparative Example 3 Example 1 Example 2 Comparative Example 4 0 days 47 47 46 45 48 48 1 week 14 25 22 34 42 46 2 weeks 10 21 22 32 44 40 4 weeks 8 18 21 31 42 42 8 weeks 5 10 16 30 41 40 12 weeks 3 4 5 28 42 41

Cycle Comparative Example 1 Comparative Example 2 Comparative Example 3 Example 1 Example 2 Comparative Example 4 0 days 47 47 46 45 48 48 1 week 25 19 25 44 41 46 2 weeks 15 15 20 41 35 42 4 weeks 11 21 19 32 36 39 8 weeks 9 15 16 30 39 40 12 weeks 10 10 11 36 39 38

As a result, as shown in Tables 4 to 9 and Figure 1, Examples 1 and 2 showed low changes in hardness and appearance over time when stored for a long period of time at all temperature conditions, and were stable at high temperatures (e.g., 45°C and 55°C). It was confirmed that the hardness and appearance were maintained above a certain level even when stored for a long period of time under temperature conditions, showing excellent formulation stability. In particular, in the case of Example 2, it was confirmed that the change in hardness and appearance over time was very low or almost minimal when stored for a long period of time at all temperature conditions, showing the best formulation stability. On the other hand, in the case of Comparative Examples 1 and 2, which do not contain the Oil/IPDI copolymer, the hardness is significantly reduced at all temperature conditions (particularly, at high temperatures (e.g., 45°C and 55°C) and temperature cycling conditions, the hardness decreases. significantly decreased), changes in the appearance state over time were clearly observed, confirming that the formulation stability was significantly lower than that of Examples 1 and 2. In addition, in the case of Comparative Example 3 containing about 1% by weight of the Oil/IPDI copolymer, hardness was maintained to some extent when stored at low temperatures (e.g., -18°C and 4°C), but as storage temperature conditions increased ( For example, under conditions of room temperature (25°C) and high temperature (45°C and 55°C) or temperature cycling, hardness was significantly reduced, and changes in appearance over time were clearly observed, resulting in a formulation at a significantly lower level compared to Examples 1 and 2. It was confirmed that it shows stability. In addition, in the case of Comparative Example 4 containing about 8% by weight of the Oil/IPDI copolymer, the change in hardness over time was low when stored for a long time at all temperature conditions, but the surface of the lipstick became rough and cracked in terms of appearance. It was confirmed that the formulation stability was significantly lower than that of Examples 1 and 2.

Through this experimental example, in the case of the cosmetic composition of the example of Table 1 containing the Oil/IPDI copolymer as a gelling agent, it was more effective under all temperature conditions, including high temperature, compared to the case where the Oil/IPDI copolymer was not included. It was found that excellent formulation stability was observed. In particular, in the case of the cosmetic composition of the examples in Table 1, the Oil/IPDI copolymer is included in an amount of more than about 1 to less than 8% by weight (specifically, about 2 to 6% by weight or about 2.5 to 5% by weight). By doing so, it exhibits significantly excellent formulation stability, while when the content of the Oil/IPDI copolymer is less than about 2.5% by weight, less than about 2% by weight, or less than about 1% by weight, hardness is significantly reduced when stored at room temperature and high temperature conditions. and the appearance condition is inappropriately changed, significantly reducing the formulation stability, and if the content of the Oil/IPDI copolymer is more than about 5% by weight, more than about 6% by weight, or more than about 8% by weight, the surface of the lipstick in terms of appearance condition It was confirmed that this roughening and cracking occurred and the formulation stability was significantly reduced. In addition, in the case of the cosmetic composition of Example 2 in Table 1, which does not contain synthetic wax as a wax component and contains only wax derived from natural products, the formulation is further increased compared to the cosmetic composition of Example 1 in Table 1, which contains synthetic wax. It was confirmed that it exhibits stability. Through this, when manufacturing the lip cosmetic of the present invention, when manufacturing it to contain only natural wax and not synthetic wax as a wax component, formulation stability can be further increased. And it was found.

In summary, through the above experimental examples, the cosmetic composition of the example in Table 1, that is, the cosmetic composition for lips in a lipstick formulation containing the Oil/IPDI copolymer, was significantly improved at all temperature conditions of low temperature, room temperature, and high temperature. It exhibits excellent formulation stability, so the lipstick formulation in excellent condition is stably maintained, and when applied to the lips, the lipstick formulation undergoes a phase transition to a liquid phase, providing a light and smooth application that not only provides an excellent feeling of use, but also provides a high gloss similar to or higher than that of lip gloss. It was found that it was granted.

The description of the present invention described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

Claims (10)

A copolymer of oil and isophorone diisocyanate (IPDI) (Oil/IPDI copolymer); wax; A cosmetic composition for lips containing; and oil,
The Oil/IPDI copolymer is contained in an amount of more than 2.5 to less than 5% by weight based on the total weight of the composition,
The weight ratio of bis-behenyl/isostearyl/phytosteryldimerdilinoleyldimerdilinoleate and bis-diglycerylpolyacyl adipate-2 contained in the lip cosmetic composition is 1:2 to 4. A cosmetic composition for lips. The method of claim 1, wherein the Oil/IPDI copolymer is PEG-100/IPDI copolymer, Bis-HEA poly(hexamethylene/methylpentylene carbonate)/IPDI copolymer, and polyglyceryl-2 diisostea. Rate/IPDI Aicopolymer, Bis-Hydroxyethyl Acrylate Poly(1,4-Butanediol)-9/IPDI Aicopolymer, Bis-Hydroxyethyl Acrylate Poly(Neopentyl Glycol Adipate)/ IPDI Icopolymer, Bis-HEMA Poly(1,4-butanediol)-22/IPDI Icopolymer, Bis-HEMA Poly(caprolactone neopentyl glycol)/IPDI Icopolymer, Bis-HEMA Poloxamer 251/IPDI Copolymer, Bis-HEA Poly(Glycol/1,4-Butane Diol Adipate)/IPDI Icopolymer, Bis-Hydroxypropyl Methacrylate Poly( 1,4-Butanediol)-9/IPDI Aicopolymer, Glyceryl Diricinoleate/IPDI Aicopolymer, Glycereth-7/IPDI Aicopolymer, Dilinoleyl Alcohol/IPDI Aicopolymer, Dihydroxyethyl tallowamine/IPDIicopolymer, bis-methylisocytosine hydrogenated polybutadiene/IPDIicopolymer, bis-hydroxyethoxypropyldimethicone/PEG-2soiamine/ IPDI Copolymer, Bis-PEG-1 Dimethicone/PPG-26/IPDI Icopolymer, Bis-Aminopropyl Dimethicone/IPDI Icopolymer, Propylene Glycol Diricinoleate/IPDI Aico Polymer, PEG-200 Hydrogenated Castor Oil/IPDI Icopolymer, Bis-Hemapolyneopentyl Glycol Adipate/IPDI Icopolymer, Bis-PEG-15 Dimethicone/IPDI Icopolymer, Bis -HEM Poly(1,4-Butanediol)-9/IPDI Aicopolymer, Polydiethylene Glycol Adipate/IPDI Aicopolymer, Glycereth-7hydroxystearate/IPDI Aicopolymer, Dimethiconol/IPDIicopolymer, polyglyceryl-2diisostearate/IPDIicopolymer, castor oil/IPDIicopolymer, bis-hydroxyethoxypropyl dimethicone/IPDIicopolymer, bis - A cosmetic composition for lips, which is at least one selected from the group consisting of hydroxylauryl dimethicone/IPDI copolymer, and BPG-15 dimethicone/IPDI copolymer. delete The cosmetic composition for lips according to claim 1, wherein the cosmetic composition for lips further comprises a paste compound. The method of claim 4, wherein the paste compound is bis-behenyl/isostearyl/phytosteryldimerdilinoleyldimerdilinoleate, bis-diglycerylpolyacyl adipate-2, phytosteryl/isosteryl. At least one selected from the group consisting of aryl/cetyl/stearyl/behenyl dimer dilinoleate, phytosteryl/octyldodecyllauroylglutamate, and phytosteryl/behenyl/octyldodecyllauroylglutamate, Cosmetic composition for lips. The cosmetic composition for lips according to claim 1, wherein the cosmetic composition for lips is formulated in a stick form. The cosmetic composition for lips according to claim 1, wherein the cosmetic composition for lips exhibits an effect of improving formulation stability, or an effect of improving feeling of use or gloss. The cosmetic composition for lips according to claim 1, wherein the cosmetic composition for lips has thixotropic properties. A lipstick manufactured by molding the cosmetic composition for lips according to any one of claims 1, 2, and 4 to 8. A method for producing the cosmetic composition for lips according to any one of claims 1, 2, and 4 to 8,
(1) Mixing Oil/IPDI copolymer and oil; and
(2) Adding wax to the mixture obtained in step (1) and mixing it. A method of producing a cosmetic composition for lips, comprising:
The Oil/IPDI copolymer is contained in an amount of more than 2.5 to less than 5% by weight based on the total weight of the composition,
The weight ratio of bis-behenyl/isostearyl/phytosteryl dimer dilinoleyl dimer dilinoleate and bis-diglyceryl polyacyl adipate-2 contained in the lip cosmetic composition is 1:2 to 4. A method of producing a cosmetic composition for lips.