MXPA97003181A - Product of cosmetic mask foam - Google Patents

Abstract

The present invention relates to: A cosmetic mask product comprising a first and a second compositions for sequential application to the face of the consumer, one of the compositions containing an effervescent agent and the other of the compositions containing a component;

Description

FOAM COSMETIC MASK PRODUCT FIELD OF THE INVENTION The present invention relates to cosmetic mascara products for application to the surface of the consumer's skin, especially to products for application to the face of the consumer. More specifically, the present invention relates to a cosmetic mask product comprising a first composition containing an effervescent agent and a second composition having an acid component, the first and the second composition being applied sequentially to cause a foaming action. More specifically, the present invention relates to the treatment of the skin, especially the face, comprising the sequential application of a cream mask as the first composition and an activating mask as the second composition, and optionally including the above application of a composition. of effective treatment for the skin that contains a high concentration of moiizers and emollients.

REF: 24547 BACKGROUND OF THE INVENTION Skin treatment regimens are well known and typically consist of applying a lotion or cream product periodically to the consumer's skin. U.S. Patent Nos. 5,422,112 and 4,275,544 are illustrative of the above application. The '544 patent describes a cosmetic regimen consisting of the use of four components, specifically, a cleanser, a cream, a lotion and a tonic. The prior art products of the lotion or cream type are generally introduced by massage to the consumer's skin. Therefore, they are not removed. Facial masks are also available, generally referred to as "mud packs" that once applied to the surface of the skin harden to form a crust film, removable with soap and water.

BRIEF DESCRIPTION OF THE INVENTION The present invention deals with a cosmetic mask product for application on the skin of the consumer, in particular, on the face of the consumer. The cosmetic mask product consists of a first composition containing an effervescent agent in a cosmetically suitable vehicle and a second composition containing an acid component in a cosmetically suitable vehicle, the first and second compositions being applied sequentially to the consumer's skin in any convenient application order. In the application of the latter of the two compositions, a foaming action occurs as a result of the gas that is released by virtue of the reaction between the effervescent agent and the acid component, with the concomitant release of heat of reaction. After a while the residue is removed from the user's skin by means of a scraper or cloth. The cosmetically suitable vehicle of one or both of the first or second compositions may contain one or more cosmetically useful adjuvants compatible with the cosmetic mask product, the adjuvants being selected from the group consisting of skin conditioning agents (including emollients, humectants) and occlusive agents), abrasives, counterirritants, including astringents, cleaning agents, and anti-acne agents, each such adjuvant included in the first or second composition being present in an effective amount to deliver its intended benefit when applied to the consumer's skin . The cosmetically suitable vehicle of one or both of the first or second compositions may also contain one or more excipients compatible with the cosmetic mask product, the excipients which are selected from a group consisting of emulsifying agents, foam enhancers, emulsion stabilizers, hydrotropes, thickeners, binders, bulking agents, pH adjusting agents including regulators, chelating agents, preservatives, colorants and fragrance components. The cosmetic mask product of the present invention consisting of the first and second composition contains sufficient water to allow reaction in the aqueous phase of the effervescent agent with the acid component. In general, each of the first and second compositions will contain water, although one of the compositions may be essentially anhydrous. The water content of the individual compositions is a function of the identity of the other incorporated constituents, as well as the requirement indicated above that combined the first and second compositions provide sufficient water when applied to the skin to allow the reaction in the phase aqueous takes place in a cosmetically effective and safe way. Typically, one of the first or second composition will further contain (i) from about 0 to about 25% of a non-liquid organic material of moderate melting point, (ii) from about 1 to about 20% of an adapted surfactant system to provide at least one of emulsion, cleaning and foam enhancement, (iii) from about 40 to about 90% water, and (iv) an amount of an effective thickening agent to provide a viscosity from about 50,000 to about 1 million cps at 25 ° C. The other of the first or second composition will typically contain (a) from about 55 to about 90% of a cosmetically suitable organic solvent, (b) an amount of an effective thickening agent to provide a viscosity of from about 25,000 to about 500,000 cps at 25. ° C, and (c) from about 0 to about 20% water as a cosolvent. In general, the effervescent agent will be included in the composition comprised of components (i) through (iv), while the acid component will be provided in the composition containing components (a) through (c). The first composition preferably containing the effervescent agent is preferably in the form of a lotion, cream or paste incorporating the above-mentioned components (i) to (iv) and the second composition preferably containing the acid component is preferably in the form of gel incorporating components (a) to (c) above. In a particularly preferred embodiment, the effervescent agent is sodium bicarbonate and the acid component is an alpha-hydroxy acid, in particular, lactic acid. The mixed composition is removed by a cloth or fabric or other means, especially means to abrade the skin slightly to assist in the removal of dirt, dead skin, oils and the like. The cosmetic mascara product is employed by first applying a uniform layer of the first or second composition to the consumer's skin using a spatula or other means. Then, the other composition is applied to the consumer's skin in any convenient way, and the skin is massaged with consequent mixing. The mixed composition is maintained in contact with the skin for a predetermined period of time, but at least until the foaming action has occurred as a result of the reaction between the effervescent agent (preferably contained in the first composition) and the acid component (preferably contained in the second composition). In a preferred embodiment, the skin treatment system includes a pretreatment with a composition especially effective in skin care, typically in the form of a lotion or cream, and containing a high level of moisturizers, humectants and emollients. This cream, later referred to as the "Moisturizing Cream", is applied to the skin in a uniform layer by gently massaging the skin, and maintaining contact with the skin for a predetermined period of time. The cosmetic mascara product of the present invention can be applied directly to the skin without removing the Moisturizing Cream.

DETAILED DESCRIPTION OF THE INVENTION The skin treatment system of the present invention comprises the treatment of the skin with a cosmetic, foamable mask product comprising the first and second compositions adapted by the sequential application to the consumer's skin, both compositions being suitable for the first application on the skin of the consumer. One of the first or second composition contains an effervescent agent and the other of these compositions contains the acid component. The skin treatment system may also include the application of a Moisturizing Cream as a pretreatment composition, the Moisturizing Cream containing a high concentration of one or more emollients, humectants, moisturizers, exfoliation agents, and essential oils. The first composition is provided in the form of a composition that does not flow appreciably when applied to the skin, especially to the face of the consumer, and thus in this way remains without dripping where it was applied. Compositions containing trixotropic rheology are suitable. The first composition preferably contains the effervescent agent a cosmetically suitable vehicle that includes one or more adjuvants and one or more excipients. Suitable adjuvants are skin conditioning agents such as emollients, humectants and occlusive agents, abrasives, contrairritants including astringents; cleaning agents; antimicrobials, and anti-acne agents, each such adjuvant is present in the first composition in an amount effective to provide its intended benefit when applied to the consumer's skin. Suitable excipients include emulsifying agents, foam enhancers, emulsion stabilizers, hydrotropes, thickeners, binders, bulking agents, pH adjusters including regulators (other than the effervescent agent), chelating agents, colorants, preservatives and components ie fragrance. Other excipients could include gelling agents and organic solvents. A suitable first composition is a cream comprising (i) from about 0 to about 25% of a non-liquid organic material, (ii) from about 1 to about 20% of a surfactant system adapted to provide at least one of emulsification, cleaning and foam increase, (iii) from about 40 to about 90% water, (iv) in amount of effective thickener agent to provide a viscosity from about 50,000 to about 1 million cps 25 ° C, and ( v) from about 1 to about 20% of an effervescent agent. This first composition in the form of a cream containing an effervescent agent is usually the first applied of the first and second compositions.

The second composition is also provided in the form of a composition that does not flow appreciably when applied to the skin, especially on the face of the consumer and is ready to be mixed with the first composition described above. The second composition is preferably in the gel form containing the acid component in a cosmetically suitable vehicle that includes one or more excipients such as gelling agents, thickeners, organic solvents, chelating agents, pH adjusting agents including regulators (other than the acid component). ), dyes, preservatives and fragrances. Other excipients could include stabilizers and binders. In general, the adjuvants are contained in the cream composition previously described, although the adjuvants numbered above with respect to the first composition to the degree compatible with the gel can be incorporated into the gel. Preferably, the gel will contain water as a co-solvent together with an organic solvent, but it can be anhydrous. This second composition in the gel form containing the acid component is usually applied to the skin after the application of the cream composition containing the effervescent agent.

The second suitable composition is a gel comprising (a) from about 55 to about 90% of a cosmetically suitable organic solvent to allow gel formation; (b) an amount of an effective thickening agent to provide a viscosity from about 25,000 to about 500,000 cps at 25 ° C; (c) from about 0 to about 20% water, and (d) from about 1 or about 30% of an acid component. These compositions and their use will be described in great detail below. In the discussion that follows, the term "cream mask" (or "cream" is easily understood by the context) will mean the first composition containing the components (i) to (iv) and the effervescent agent (v), while the The term "activating gel" (or "gel" if easily understood by the context) will mean the second composition containing the components (a) through (c) and the acid component (d). However, one skilled in the art will understand that such terms refer to the preferred forms of the first and second compositions, which have the more general definitions set forth below and in the Summary of the Invention. For convenience, the use of the cosmetic mask of the present invention will be described in connection with its application to the face of the consumer. However, the product is generally useful in the treatment of the skin in the human body. All percentages less than other indication are in percent by weight of the identified composition.

Mask Composition in Cosmetic Mask Product Cream The cream mask is in the form of cream having a viscosity of 50,000 to 1 million, preferably from about 150,000 to about 500,000, more preferably from about 200,000 to about 400,000 cps at 25 ° C. The cream mask is uniformly applied to the skin in a relatively thin layer that remains in contact with the skin for a predetermined period of time before the application of the activating gel as described below. The cream mask contains (i) from about 0 to about 25% non-liquid organic material of moderate melting point, (ii) from about 1 to about 20% of a surfactant system to provide one or more emulsion, cleaning and foaming; (iii) from about 40 to about 90% water, (iv) an amount of a thickening agent effective to provide a viscosity in the aforementioned range, and (v) from about 1 to about 20% of an effervescent agent. The non-liquid organic material is incorporated to ensure that the cream composition has sufficient body, and in this way it will not drip or run when applied to the skin. The non-liquid organic material is preferably selected to provide an emollient, humectant or other skin conditioning function when applied to the skin. It is incorporated into the cream composition in place of an emollient oil because the emollient oils tend to suppress the foaming action obtained by the reaction of the effervescent agent and the acid component. However, low levels of emollient oils can be tolerated, generally less than 1.0%, especially less than 0.2%, by the total weight of the cosmetic mask product. Preferably, the non-liquid organic material (i) is present in amounts of from about 1 to about 20%, and more preferably from about 5 to about 15% by weight of the cream composition. These materials are of a hydrophobic nature and are not readily soluble in water. The HLB of these materials is less than 10, especially less than about 6. These materials often have waxy or wax-like consistency. The organic materials used in the cream composition of the present invention typically have a melting point above 51.6 ° C (125 ° F), preferably from 51.6 ° C to 93.3JC (125 ° F to 200 ° F), more preferably from 57.2 ° C to 79.4 ° C (135 ° F to 175 ° F). The materials identified in the CFTA Cosmetic Ingredient Handbook, pp. 79-84 (First Edition 1988) as skin conditioning agents are conveniently provided as hydrophobic and not liquid, and especially if they have moderate melting points in the aforementioned range. Useful materials are primary, saturated fatty acids having from about 12 to about 22 carbon atoms such as stearic, palmitic and behenic acids, glyceryl fatty esters and alkyl lanolin of these acids; primary, saturated fatty alcohols having from about 12 to about 22 carbon atoms such as the cetyl, stearyl and cetearyl alcohols; polyethylene glycols and mono- and diesters thereof, and natural and synthetic waxes such as beeswax, microcrystalline wax, hydrogenated castor oil, paraffin wax and lanolin wax. These materials could have up to three, more typically two, moles of ethylene oxide per molecule, as long as they remain non-liquid and hydrophobic. Although the incorporation of the non-liquid organic material is highly preferred, it is considered as an optional ingredient in the cosmetic mask product and for this reason it is cited as being presented at a concentration of 0%. In this way, when the cosmetic mask product is used in the skin treatment system that pretreats the consumer's skin with the Hydrotone Cream, the need to provide additional emolliency by means of the cream mask is mitigated. In addition, the benefits of the treatment received from the reaction of the effervescent agent and the acid component are not diminished. If necessary additional body can be provided by increasing the concentration of thickeners, although the organoleptic (creaminess, touch, etc.) of the cream mask could also suffer to some degree. The cream mask contains from about 1 to 20% of a surfactant system that provides at least one of emulsion, cleaning, foam enhancement and other function generally associated with a surfactant. As is well known in the cosmetic art, an individual surfactant can provide multiple functions in a cosmetic composition, and can act as a cleanser, emulsifier and foaming enhancer in the cream mask composition of the present invention. Either way, a mixture of surfactants containing specific surfactants, which excel in each function, optimizes the performance of the cosmetic mask product. The surfactant system may contain a surfactant, but will typically include a plurality of surfactants, to achieve the required function (s). Useful surfactants are identified in the CTFA Cosmetic Ingredient Handboo on pages 87-97. Preferably, the surfactant system is present in an amount of about 3 to about 15% by weight of the cream composition, preferably in an amount of 5 or 10%. The surfactants may be anionic, nonionic, cationic, amphoteric or zwitterionic, but are nonionic to provide an emulsifying and anionic or amphoteric function to provide a cleaning function. In general, the surfactants used in the surfactant system are at least water dispersible and have an HLB of at least 10, often by the arrival of 12. Incompatible combinations (eg, most anionic mixtures) should be avoided. cationic). Representative nonionic surfactants useful in the cream composition are described in the CTFA Cosmetic Ingredient Handbook, pages 90-97 (Ia ed. 1988), which is incorporated herein by reference, and include ethoxylated fatty alcohols preferably having from 5 to 25 moles of ethylene oxide; esters of ethoxylated fatty acids preferably having from 5 to 50 moles of ethylene oxide; ethoxylated glyceryl fatty acids preferably having from 12 to 30 moles of ethylene oxide; ethoxylated lanolin and esters of ethoxylated lanolin preferably having from 5 to 75 moles of ethylene oxide; ethoxylated alkylphenols especially having 5 or 100 moles of ethylene oxide; esters and ethoxylated fatty oils preferably having from 8 to 100 moles of ethylene oxide; esters of sorbitan and especially ethoxylated sorbitan esters preferably having from 8 to 75 moles of ethylene oxide, polyoxyethylene / polyoxypropylene block copolymers especially the copolymers having the formula (EO) x (PO) and (EO) x wherein EO and PO represent units of ethylene oxide and propylene oxide, respectively, and alkoxylated amines preferably having they have from 5 to 50 moles of ethylene oxide. By the term "fatty" as used to describe ethoxylated acids, alcohols, amines and esters and oils useful as surfactants in the surfactant system, is meant a substituent or compound group as the case may be that it has about 10. to about 22, preferably 14 to 18, carbon atoms in the group or compound, which may be saturated or unsaturated. The degree of ethoxylation is selected to provide good emulsifying properties. Illustrative non-ionic emulsifiers are identified below using the CFTA nomenclature, which is commonly used now in the personal / cosmetic products industry and is routinely used in the classification of such products *; Cll-15 Pareth-5, -7, -12, -20 Ceteareth-6, -8, -10, -15, -20, -55 Ceteth-6, -30 Isosteareth-10, -12, -20 Laneth- 10, -15, -20 Laureth-7, -10, -12, -20, -25, -30 Nonoxynol-6, -10, -14 Octoxynol-7, -10, -16 PEG-5, -8 Cocoato PEG-20, -150 PEG-20 Dioleate, -30 Glyceryl Exarate PEG-25, -35, -50, -200 Hydrogenated Castor Oil PEG-8, -10, -14 Laurato PEG-10, 15, -40, -50, -100, -150 Poloxamer stearate 238, 288, 338 Poloxamine 904 PPG-27, -55 Glyceryl Ether Stearath-7, -13 -16, -100 * In the previous list, several numbers followed by the designation CFTA in some examples, as in "Nonoxinol-6, -10 ..." or "Poloxamer 238, 288 ..." indicate several compounds, that is, Nonoxinol-6 , Nonoxinol-10, Poloxamer 238, Poloxamer 288, etc., Preferred are the glyceryl esters and polyethoxylated esters of fatty acids and ethoxylated fatty alcohols, which all have at least 5 moles of EO. Highly ethoxylated hydrogenated oils are also preferred. Representative anionic surfactants useful in the formulation of the cream composition are described in the CFTA Handbook on pages 87-90, which is incorporated herein by reference, and include ammonium, sodium and potassium salts of: fatty acids, amides of N-methyl taurine fatty acids, taurine fatty acid esters, isethionic acid fatty acid esters, alkyl sulfates, glutamic acid fatty acid amides, acyl fatty acids of sarcosines, for example, sodium myristyl sarcosinate, and the aforementioned ethoxylated derivatives. Preferred non-anionic surfactants may be mild to the skin, and such surfactants include taurates, sarcosinates and isethionates. The fatty alkyl portion is as described in relation to the nonionic surfactants. Illustrative anionic surfactants are listed below (as the sodium salt): * Sodium Cetyl Sodium Sulphate Sodium Sulfate Sodium Cocoate Sodium Cocoate Sodium Isethionate Cocoil Sodium Sarcosinate Sodium Laureth Laureth Sodium Sulfate Laureth-5, -7, -12 Sodium Sulfate Lauroil Sodium Sarcosinate Lauroyl Sodium Taurate Sodium Lauryl Sulfate Methyl Cocoil Sodium Taurate Methyl Oleoyl Sodium Taurate Nonoxynol-1, -4 Sodium Sulfate See footnote on page 19.

Amphoteric surfactants also have good cleansing properties and are advantageously non-irritating. Suitable amphoteric surfactants are betaines, such as coco-betaines, cocoamidopropyl betaine, cocoamidopropyl hydroxysultaine, and the like. It is understood, in any way, that the nonionic surfactants also have cleaning properties and can be replaced by the anionic or amphoteric surfactant.

The thickening agent is one typically used in aqueous compositions, and includes gums, resins, minerals and organic salts. The thickening agent is present in an amount to stably thicken the composition to a viscosity of about 50,000 to about 1 million cps at 25 ° C, preferably 150,000 to 500,000. especially from approximately 200,000 to 400,000 cps at 25 ° C. Thickening agents include cellulose and its derivatives, especially carboxymethylhydroxyethylcellulose, hydroxyethylethylcellulose, hydroxypropylmethylcellulose and methylcellulose; carbohydrates such as carrageenan, alginate, guar gum agar and its derivatives, starch and modified starches, beta-glucans, and xanthan gum; magnesium aluminum silicate; clays such as attapulgite, bentonite, montmorillonite and hectorite; acrylics; acrylate resin, for example, carbomers, and certain polymers and copolymers, for example, polyvinyl alcohol. In general, the thickening agent is present in an amount from 0.1 to about 5% by weight of the cream composition, preferably from 0.1 to 3%, more suitably from 0.5 to about 2%. Bentonite is especially preferred, magnesium and aluminum silicate, xanthan, and beta-glucan. Some changes in viscosity can occur over time. The referred values are for the product as it is received by the consumer, that is, after storage for one or more months. The cream mask should not be too thick to make its application difficult or to prevent the reaction between the effervescent agent and the acid component from taking place. The effervescent agent will release a gas in the reaction with the acid component. The amount of effervescent component present in the composition will be such that it will generate a sufficient amount of gas to obtain the foaming action. The reaction between the effervescent agent and the acid component is exothermic and gives an organoleptically noticeable heating to the surface of the consumer's skin. Suitable effervescent agents are ammonium, bicarbonates and carbonates of the sodium and potassium salts. The effervescent agent is generally present in the cream composition in an amount of from about 1 to about 20%, preferably from about 3 to about 15%, more preferably from about 3 to about 10% by weight. Water is present in the cream mask in an amount of about 40 to about 90%, preferably about 60 to about 80%. The cream mask is preferably the primary reservoir for the water of the cosmetic mask product, necessary in the same way as the average reaction for the reaction between the effervescent agent and the acid component. Because a portion of the water can be provided in the activating gel, in any case, the formulator will enjoy a large amplitude in the amount of water contained in the activating gel, to increase the organoleptic properties of the cream mask, to increase its physical properties, or facilitate its manufacture. The pH of the cream composition is alkaline, generally from 7.5 to 9, preferably from 7.8 to 8.5, in particular from 7.8 to 8.3. If the pH is very low, the cream mask will emanate gas by the decomposition of the effervescent agents. Above 9 the cream mask will tend to be irritating to the skin. The pH can be adjusted if necessary using a pH adjusting agent such as sodium hydroxide or other alkali material such as alacanolamines, etc. The cream composition optionally contains from 0.001 to 0.25%, preferably from 0.05 to 0.1% by weight of a contrairritante that will include essential oils and some astringents. The essential oil is present in such low amounts that it does not appreciably affect the foaming composition of the cream mixture and the gel composition. The essential oil acts as a counter-irritant that dilates the blood capillaries close to the surface of the skin, producing a cooling effect in advance of the thermal effect provided by the reaction of the effervescent agent and the acid component. Suitable essential oils are sandalwood, eucalyptus, spearmint, menthol, spearmint, roses and cloves. The essential oils also give a pleasing aroma to the cream product. Also useful for this function is the water of hema elis, as an astringent. The cream composition may contain other optional adjuvants to provide cosmetic benefits. Illustrative of such adjuvants are the skin conditioning agents which are oils at room temperature, will be present supplied in the cosmetic product mask in a total concentration of less than 1% by weight, preferably less than 0.2% by weight. Such skin conditioning agents include, for example, isopropyl myristiate, isopropyl palmitate, isopropyl neopentanoate, squalene, mineral oil, C? 2-:benzoate and hydrogenated polyisobutene. The cream composition may contain a mild abrasive material such as almond flour, oatmeal, wheat flour, pumice, earth of diatoms, polyethylene and the like, to aid in the removal of the superficial cells of the skin. The abrasive is characteristically present in an amount less than 5%, and characteristically between 1 and 5%. Yet another optional adjuvant is a biocide or antimicrobial material having cosmetic utility such as triclosan, cetylpyridium chloride and benzalkonium chloride, which are characteristically present in an amount less than 0.5% by weight of the cream mask, preferably less than 0.1 % by weight. Salicylic acid is a known anti-acne agent, but it would not be incorporated into the cream mask containing the effervescent agent. Suitable optional components that have excipient benefits that can be incorporated into the cream mask are preservatives such as methylparaben, propylparaben, and imidiazolidinyl urea and the like, and antioxidants such as BHA, BHT, sodium ascorbate, sodium citrate, sodium acetate, tocopherol and sodium sulfite. Preservatives and antioxidants are generally present in amounts less than 1%, especially less than 0.1%. The cream composition preferably contains a chelating agent, for example, trisodium EDTA, which is generally present in an amount of less than 1%, especially less than 0.5%. A dye, that is, a dye, pigment or a pearlizing agent, can be used in an amount less than 1% to provide a color or a pleasing visual or color effect to the cream product. FD &C dyes are preferred.

Composition of the Cosmetic Mask Product Activator Gel The activating gel composition is provided as a carrier for the acid component, and as such characteristically does not contain active cosmetic components. Advantageously, the preferred gel form of the activating composition is manufactured using conventional technology, is stable in acidic pH and is easily applied to the consumer's face of a tube or other user-friendly container. The activating gel comprises, in addition to the acid component, (a) from 55 to 90% organic solvent, (b) from 0 to 20% water, (c) an amount of thickening agent to provide a viscosity of 25,000 to 500,000 cps at 25 ° C, and (d) an amount of regulatory agents, including zero, effective to provide a pH of about 3.5 to about 6. Any cosmetically acceptable acid can be employed as an acidic component, although inorganic acids are not preferred because they can be irritating if they are not used carefully. The acid component is present in the gel composition in an amount of 1 to about 30%, preferably in an amount of about 5 to about 15% by weight of the composition. Of the inorganic acids, crlhidríco acid and phosphoric acid of diluted concentration are especially convenient. Preferably, an organic acid will be employed, in particular, an organic acid such as ascorbic acid having a pKa of 1 to 9, especially 2 to 5. The a-hydroxylated acids are preferred since they are mild, they can still provide an effect exfoliating on the skin Of the a-hydroxy acids. products of lactic, glycolic, citric, malic, tart-rich, mandelic and benzyl acids can be mentioned. ß-Hydroxylated acids are also useful, especially salicylic acid, which can also provide anti-acne benefit. Lactic acid is especially preferred. The organic solvent component is a material suitable for use in cosmetic compositions, especially gels. The solvent is characteristically mono- or dihydric alcohol having 3 or 8 carbon atoms. Such components include isopropyl alcohol, n-butyl alcohol, hexanol, propylene glycol, butylene glycol, ethyl-hexanediol, and dipropylene glycol. Also suitable for their low molecular weight are polyethylene glycols, polyalkene glycols, mannitol, sorbitol and esters. The organic solvent is present in an amount of about 55 to about 90%, preferably about 70 to about 85%, by weight of the activating composition. Butylene glycol is preferred. The water is a co-solvent together with the organic solvent and is present in an amount of from about 0 to about 20% by weight of the gel composition, preferably from about 5 to about 15% by weight of the gel composition. The amount of water can be adjusted in relation to the water content of the cream mask to provide the required amount of water in the cosmetic mask product. In this way, wide latitude exists in the amount of water incorporated and can be adjusted or to provide particular physical properties to the gel to facilitate its manufacture. The water present in the gel composition will help in the hydration of the matrix gel. Convenient thickeners are those previously identified with respect to the cream composition, especially natural resins such as cellulose derivatives and gums such as xanthan and carragemine. Hydroxyethylethylcellulose is especially suitable for producing a low pH trixotropic gel. The thickening agent is typically present in an amount of from about 0.1 to about 3%, preferably from about 0.5 to about 1.5%, to provide the desired viscosity previously stated. The preferred viscosity is generally about 50, 000 to about 250,000, and especially from about 50,000 to about 175,000 cps at 25 ° C. It has been found that the activation of the reaction in terms of the effervescent effect is superior when the acid component is present in the gel composition. Accordingly, the preferred incorporation of the activating composition is in the form of a gel having a low water content but a high concentration of organic solvents. Conversely, the cream composition is a highly aqueous system that provides the water necessary for the aqueous phase and the acid component effervescent agent reaction is carried out. The gel activating composition generally contains a pH adjusting agent to provide and maintain the pH at the desired level. The pH adjusting agent in the gel-activating composition provides a pH of from about 3.5 to about 6, preferably from about 4 to 5, and is present in a concentration as required to provide such a pH. Suitable pH adjusting agents are sodium hydroxide, potassium hydroxide, mono-, di and trietalone ina and aminomethylpropanol. Optional materials useful for incorporation into the accelerator composition include these optional components identified above with respect to the cream composition.

Composition in Hydrating Pre-Treatment Cream Optionally, the skin conditioning regime may include the application of the product rich in moisturizers, emollients, humectants and the like in application of the cosmetic mask product of the present invention. This composition is applied to the skin, especially to the face of the consumer, by gently massaging the consumer's skin, and leaving it in contact with the skin for a predetermined period of time. The product is applied to the face for up to 30 minutes, preferably up to 15 minutes, after the cosmetic product mask of the present invention was applied. Application times between 2 and 15 minutes are used in case the Moisturizing Cream contains an exfoliation agent. The pretreatment skin treatment product is not removed from the skin. While the skin pretreatment moisturizer may be a conventional product, for example, Firm Defense Cream ™ developed by Matrix Essentials, Inc., is preferably formulated to provide a gentle skin peel, free of dirt, and increase the action of the foam produced by the reaction of the effervescent agent and the acid component of the cosmetic product mask. Exfoliating tools are the α-hydroxylated acids and the β-hydroxylated acids, which are present in the pretreatment composition of the Moisturizing Cream in an amount greater than 30%, preferably from 1 to 20%, more preferably in an amount of 5 to 15% by weight of the cream composition Pretreatment humectant. When such acids are used, the composition is regulated, for example, using sodium or ammonium hydroxide, for a pH of from about 3.5 to about 6, preferably from about 4 to about 5. Because the Moisturizing Cream is substantially completely absorbed in the skin prior to the application of the cream composition of the cosmetic mask product, could contain emollient oils such as dimethicone, isopropyl iristiate, isopropyl sebacate, isopropyl palmitate, mineral oil and hydrogenated polyisubotene, as well as other preservative constituents of the skin, previously identified here. A commercially-available skincare product especially beneficial as a pre-treatment Moisturizer is Age Recovery Alpha Rene alR Treatment Cream sold by Matrix Essentials, Inc. Also available is Lac-Hydrin® 5% and Lac-Hydrin® 12% sold by Westwood Squibb, Inc.

Use of the cosmetic mask product The composition of the cosmetic mask product contains an effervescent agent which is generally applied first, followed by the application of the composition containing the acid component. Either way, this order of application can be reversed if greater contact between the acid component and the skin is desired to increase the exfoliation of the skin, especially in the absence of pretreatment with the Moisturizing Cream containing the exfoliating agent. The first composition, usually the cream mask composition containing an effervescent agent, is applied evenly over the treatment area, for example, in the case of a facial treatment, the cream is applied to the forehead, cheeks, around of the eyes, chin, etc., in a thin layer of approximately 0.5 or 5 mm in thickness or from approximately 5 to approximately 30 g of cream composition in most cases. In general, the cream mask product is allowed to remain in contact with the skin for up to 10 minutes. Preferably, because, the second composition which is the acid component containing the activating gel is applied immediately after the application of the first composition, that is, from a few seconds to about five minutes, usually less than one minute after the application. of the first composition. The activating composition of the gel is applied just as the acid component is in general really depleted by the reaction with the acid component. The measurement of the activating gel is easily done by applying the gel of a tube as a bubble of a certain diameter with the instructions identifying where the bubble should be applied to the face of the consumer. Of course, the user, especially the profonal salon, can be instructed to measure the amount of the first and second composition by weight or volume. For the retail market, pre-measured packages can be provided. In general, from about 5 to about 30 g of activating gel containing the acid component will be applied to the consumer's face in a bubble of 1/16 to 3/38 inches in diameter. The cream to gel weight ratio is typically 1: 2 to 4: 1, preferably 1: 1 to 3: 1, and more preferably 2: 1. The gel can be applied in two or more doses up to 15 minutes or a little more, generally lthan 5 minutes, separately. The gel bubble is then mixed in the cream composition using a spatula or other means, at the beginning of the reaction it is accompanied by heat and foaming. Foaming occurs because the gas is released, that is, carbon dioxide when the effervescent agent is sodium bicarbonate, is filtered through the relatively viscous cream-gel mixture. Although the cosmetic mask product contains surfactants that can increase the foaming effect, foaming does not occur in the absence of the reaction. The total amount of the gel composition applied to the face is generally such that ntially the complete reaction of the acid component with the effervescent agent is carried out. That is, the amount of effervescent agent applied to the consumer's face is generally in a stoichiometric excover the amount of acid component applied to the consumer's face. This ensures that the cosmetic product foamy face mask will get on the surface of the skin by mixing the cream and gel composition will have a neutral pH to a little alkaline.

Charristically, then, the molecular ratio of the effervescent agent and the acid component as applied to the face of the consumer is from 1.1% to about 4.1, preferably from about 1.5: 1 to about 3: 1. Because the cream and the gel are viscous compositions, the time for the complete reon is delayed a little, allowing contof the skin with the acid component. In some cases, however, it may be desirable to maintain an acidic composition on the face of the consumer after completion of the reon, and in such cases the acid component may be maintained in a stoichiometric excess over the amount of effervescent agent, as such. constituents are applied to the face of the consumer. This case may be caused when the initial concentration of acid component in the vating gel is in excess of 20% by weight, and a smooth "peeling" of the skin is desired. In general, no pretreatment with an Exfoliating Moisturizing Cream occurs in such a case. As explained previously, the effervescent agent is generally in excess of the stoichiometric amount of the acid component in the cosmetic mask product, thereby substantially completely ensuring the reon of the acid component. Coupled with suitable written instructions, this excess also decreases the degree of precision needed in measuring the relative amounts of cream and gel compositions. The cosmetic mask product requires sufficient water to ensure the non-irritating reon of the effervescent agent and the acid component on the consumer's skin. In general, the amount of water depends on the amount and solubility of the reagents, and thus it is especially preferable to select reagents that are quite soluble, such as sodium bicarbonate and lc acid. The convenient solubility in water is above lg / 100 ce. The first and second combinations combined comprise that the cosmetic mask product will be kept in contwith the skin for up to 30 minutes, preferably 5 to 15 minutes. Subsequently the residue is removed by means of a cloth or scraping as is known in the art. The consumer's face can then be washed with a mild soap composition. The regimen consisting of the application of the moisturizing cream product, the application of the first composition containing the effervescent agent or the acid component, and the application of the second composition contain the other effervescent agent or the acid component which improves the tone of the skin, texture and softness, and removes dead cells that adhere to the surface of the skin and in this way accentuate the discontinuity on the surface of the skin. Additionally, the skin treatment regimen can alleviate localized skin inflammations caused by bria.

Manufre The cosmetic mask product is manufred using conventional methods used in the manufre of similar products. In this way the hydrophobic and hydrophilic components of these compositions are typically combined at high temperatures to form premixes, and then combine them together to form the final product. In the case of the effervescent agent contained in the product, it is preferable to incorporate it as the last component and in a composition having a pH high enough to avoid gas formation. An alkalizing agent such as sodium hydroxide can be incorporated for this purpose. In the case of the gel vating composition, all the ingredients can be combined in a single process, sequentially, with a good mixture and at high temperatures to help in the dissolution. A premix of the thickener and the dye with solvent deposits can be useful to facilitate mixing and gelation. After the formation of the gel, the mixture is cooled. The present invention is subsequently illustrated by the following examples.

Example 1 Composition of the Weight Cream. % Water C.S. 100% Sodium bicarbonate 5.0 Methyl sodium cocoyl taurate 5.0 Cetearyl alcohol 3.5 Glyceryl stearate 1.5 Cetilic alcohol 5.0 PEG-100 stearate 1.5 PEG-40 castor oil 1.5 Essential oil 0.01 Preservative 1.0 Coloring 0.4 Paste xanthous 1.5 Trisodium EDTA 0.2 100.00 Viscosity = 302,000 cps at 25 ° C pH = 8.0 Activating Gel Weight. % Water C. S. 100% Butylene glycol 78. 0 Hydroxyethylethylcellulose 1. 0 Hydroxide of jodio (50%) 2. 0 Lactic acid (88%) 9. 1 100 1 30 Viscosity = 53,000cps at 25 ° C pH - 4.9 The cream is applied to the consumer's face uniformly and without massaging the skin. The activating gel composition is then applied in a bubble form about 1/8 inch in diameter over the composition in cream and forehead, cheeks and chin, and is then mixed into the cream with a gentle massage or by means of a spatula. The combined compositions begin to foam due to the reaction between bicarbonate and lactic acid.

The foaming is not due to the presence of surfactants in the cream composition, but perhaps the bubbling of carbon dioxide of the mixed composition. Of course, the composition of a good foam in the aqueous system will be enhanced by the inclusion of a surfactant. The experience of the consumer in terms of the refreshing sensation of the skin on the application of the composition in cream, which precedes the burning of the skin attributable to the heat of an exothermic reaction. In this example approximately 16 g of cream were applied on the face of the consumer, and approximately 8 g of gel were applied. After 10 minutes, the cosmetic mask is removed from the consumer's face using a scraper and the face is then washed.

Example 2 Same as Example 1 but the application of the cosmetic mask is preceded by the application of 8 g of activating gel. The cosmetic mask is applied 5 minutes later.

Example 3 Same as Example 1 or Example 2, but the cosmetic mask is preceded by the application of 5% LacHydrin® as a Moisturizing Cream.

Example 4 The ism as in Example 1, except that the sodium bicarbonate is contained in the gel accelerator at a level of 5%. The lactic acid (88%) and the sodium hydroxide (50%) components of Example 1 are contained in the cream composition at a level of 8% and 2%, respectively. The cream composition containing lactic acid and sodium hydroxide is applied first, but in an amount of 9 g. Approximately 15 g of the gel composition containing sodium bicarbonate is applied to the consumer's face.

It is noted that in relation to this date, the best method known by the applicant to carry out the present invention is that which is clear from the present description of the invention. Having described the invention as above, the content of the following is claimed as property:

Claims (25)

1. A cosmetic mask product for the consumer's skin treatment composed of a first and a second composition, one of the first and second mentioned compositions containing from about 1 to about 20% of an effervescent agent and the other composition containing from about 1 to about 30% of an acid component, characterized in that it is adapted for sequential application in the consumer's skin and consequently each of the compositions further comprising a cosmetically suitable vehicle, at least one of the first and the second compositions contain as part of said vehicle at least one cosmetic adjuvant selected from a group consisting of non-liquid organic materials, providing beneficial skin conditioners, abrasives, counter-irritants, surfactants such as cleaning agents, biocides, and anti-acne agents which are compatible with the product of more cosmetic face and with the composition in which it is contained, at least one adjuvant being present in an amount effective to provide its projected function, and the cosmetic mask product incorporating a quantity of water in the first and / or second composition effective as a means for the reaction of the effervescent agent and the acid component when the first and second composition are sequentially combined in the skin of the consumer.

2. The cosmetic mask product according to claim 1, characterized in that the first composition is in the form of a cream and contains the effervescent agent, and wherein the second composition is in the form of a gel and contains the acid component.

3. The cosmetic mask product according to claim 1, characterized in that for each of the first and second compositions, the cosmetically suitable vehicle contains one or more excipients selected from the group consisting of thickeners, binders, suspension aids, chelating agents, agents gelling agents, pH adjusting agents, and together with a surfactant agent system comprising at least one surfactant that provides a beneficial emulsifier and foam booster, the excipient that is present in the first and second compositions in an effective amount to provide its projected function.

4. The cosmetic mask product, characterized in that it comprises a first composition containing 1 to 20% effervescent agent and a second composition comprising 1 to 30% of a cosmetically acceptable acid component, wherein the first and second compositions further comprise (i) ) from about 0 to 25% of a non-liquid hydrophobic organic material having skin conditioning efficacy; (ii) from about 1 to 20% of a surfactant system adapted to provide one or more emulsion, cleaning and foaming; (iii) from about 40 to 90% water, (iv) an amount of thickening agent effective to provide a viscosity of about 50,000 to 1 million cps at 25 ° C, and the other of the first and second composition further comprising (a) from about 55 to 90% of a cosmetically suitable organic solvent; (b) from 0 to 20% water, and (c) an amount of thickening agent to provide a viscosity of 25,000 to 500,000 cps at 25 ° C. the amount of water present in the cosmetic mask that is sufficient to provide an aqueous medium for the reaction of the effervescent agent and the acid component when the first and second compositions are combined in the skin of the consumer.

5. The product according to claim 4, characterized in that the first composition contains components (i) through (iv) and wherein the second composition contains components (a) through (c).

6. The product according to claim 5, characterized in that the first composition is a cream and wherein the second composition is a gel.

7. The product according to claim 4 or 6, characterized in that the non-liquid organic material is selected from the group consisting of fatty acids and the fatty esters of alkyl and glyceryl of such acids; fatty alcohols; polyethylene glycols and the mono- and diesters thereof, and waxes.

8. The product according to claim 4 or 6, characterized in that the surfactant system comprises at least one surfactant, nonionic emulsifier.

9. The product according to claim 8, characterized in that the nonionic surfactant is selected from a group consisting of ethoxylated fatty alcohols; ethoxylated fatty acids; esters fatty acid glyceryl ethoxylates; ethoxylated lanolin and acid esters of ethoxylated lanolin, ethoxylated alkylphenols, oils and ethoxylated fatty esters, ethoxylated sorbitan and ethoxylated sorbitan esters; polyoxyethylene / polyoxypropylene block copolymers, the nonionic surfactant having an HLB of at least 10.

10. The cosmetic mask product according to claim 8, characterized in that the surfactant system promotes the inclusion of an amphoteric or anionic surfactant.

11. The cosmetic mask product according to claim 10, characterized in that the surfactant, cleanser, amphoteric or anionic agent is selected from the group consisting of the fatty acid salts of ammonium, sodium and potassium, fatty acid esters of taurine, esters of fatty acids of isethionic acid, alkyl sulfates, acyl derivatives, fatty acids of sarcosines and ethoxylated derivatives mentioned above betaines and sultaines.

12. The cosmetic mask product according to claim 1, 4 or 6, characterized in that the effervescent agent is selected from the group consisting of sodium, potassium and ammonium carbonates and bicarbonates, and is present in the first or second composition in the amount of 3 or 15%.

13. The cosmetic mask product according to claim 12, characterized in that the acid is an organic acid having a pKa of about 1 to about 9, and is present in the first or second composition in an amount of 5 or 15%.

14. The cosmetic mask product according to claim 13, characterized in that the acid component is selected from the group consisting of alpha-hydroxy, beta-hydroxy acids and mixtures thereof.

15. The cosmetic mask product according to claim 14. characterized in that the acid component is selected from the group consisting of lactic acid, glycolic acid, malic acid, tartaric acid, citric acid and mandelic acid.

16. The cosmetic mask product according to claim 6, characterized in that the thickener for each of the first and second compositions is selected from a group consisting of cellulosic materials, carbohydrates and clays and provides a viscosity of the first composition of about 150,000 to about 500,000 cps at 25 ° C, and from the second composition of about 25,000 to about 250,000 cps at 25 ° C.

17. The cosmetic mask product according to claim 13, characterized in that the first composition comprises from about 0.01 to about 0. 1 of an anti-irritant.

18. The cosmetic mask product according to claim 13, characterized in that the non-liquid organic material is present in an amount of about 1 to about 20% by weight of the first composition.

19. The cosmetic mask product according to claim 1 or 4, characterized in that it includes 1 to 4 parts by weight of composition containing effervescent composition by part of the composition containing the acid component.

20. A method, characterized in that it comprises the steps of sequential application to the skin of the first composition and the second composition, one of the first and second compositions containing from about 1 to about 15% of an effervescent agent and the other of the compositions containing from about 1 to about 30% acid component, each of the compositions further comprising a vehicle cosmetically suitable, at least one of the first and second compositions containing as part of said vehicle at least one cosmetic adjuvant selected from the group consisting of. non-liquid organic materials providing skin conditioning benefit, abrasives, biocides, anti-irritants, surfactants as cleaning agents and anti-acne agents which are compatible with the sequential cosmetic treatment with the first and second compositions, at least one adjuvant being present in an effective amount to provide its projected function, and the first and / or second composition containing a combination in effective amount of water as a means for the reaction of the effervescent agent and the acid component when the first and second compositions are sequentially combined in the consumer's skin .

21. The method according to claim 20, characterized in that the first composition is in the cream form and contains an effervescent agent, and wherein the second composition is in the gel form and contains the acid component.

22. The method according to claim 21, characterized in that for each of the first and second compositions, the cosmetically suitable vehicle contains one or more excipients selected from the group consisting of thickeners, binders, suspension aids, chelating agents, gelling agents, pH adjusting agents, and together with a cleansing surfactant that may be present in the first or second composition, a surfactant system containing at least one surfactant to provide an emulsifying or foam enhancing benefit, the excipient is present in the first and in the second composition in an effective amount to provide its designated function.

23. A method, characterized in that it comprises the steps of sequential application to the skin of the first composition containing 1 to 10% of an effervescent agent and a second composition containing 1 to 30% of a cosmetically acceptable acid component, one of the first and second composition further comprising (i) from about 0 to 25% non-liquid organic material having skin conditioning benefit; (ii) from about 1 to 20% surfactant system adapted to provide one or more emulsion, cleaning and foaming; (iii) of about 40 or 90% water, and (iv) an amount of an effective thickening agent to provide a viscosity of about 50,000 to 1 million cps at 25 ° C, and the other of the first and second compositions that further comprises (a) about 55 or 90% of a cosmetically suitable organic solvent; (b) 0 or 20% water, and (c) an amount of an effective thickening agent to provide a viscosity of about 25,000 to 500,000 cps at 25 ° C, the total amount of water present in the first and second compositions that are sufficient to provide a means for the reaction of the effervescent agent and the acid component when the first and second compositions are combined in the skin of the consumer.

24. The method according to claim 23, characterized in that the first composition contains components (i) through (iv) and wherein, the second composition contains components (a) through (c).

25. The method according to claim 24, characterized in that the first composition is a cream, which is applied first on the skin and where the second composition is a gel.