WO2001085103A1 - Nettoyant anhydre - Google Patents

Nettoyant anhydre Download PDF

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Publication number
WO2001085103A1
WO2001085103A1 PCT/US2001/014570 US0114570W WO0185103A1 WO 2001085103 A1 WO2001085103 A1 WO 2001085103A1 US 0114570 W US0114570 W US 0114570W WO 0185103 A1 WO0185103 A1 WO 0185103A1
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WO
WIPO (PCT)
Prior art keywords
skin
water
skin cleanser
anhydrous
gel
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Application number
PCT/US2001/014570
Other languages
English (en)
Inventor
Karl Laden
Harry Brand
Original Assignee
Karl Laden
Harry Brand
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Karl Laden, Harry Brand filed Critical Karl Laden
Priority to US10/333,671 priority Critical patent/US20030211062A1/en
Priority to AU2001261211A priority patent/AU2001261211A1/en
Publication of WO2001085103A1 publication Critical patent/WO2001085103A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/10—Washing or bathing preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/25—Silicon; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/31—Hydrocarbons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/342—Alcohols having more than seven atoms in an unbroken chain
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A61K8/375—Esters of carboxylic acids the alcohol moiety containing more than one hydroxy group
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/42—Amides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/60—Sugars; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/67—Vitamins
    • A61K8/678—Tocopherol, i.e. vitamin E
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/86—Polyethers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/89—Polysiloxanes
    • A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
    • A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
    • A61K8/925—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of animal origin

Definitions

  • This invention relates generally to cosmetic preparations for application to the skin and in particular to anhydrous preparations for cleansing the skin.
  • aqueous based skin cleansers can remove water-soluble soils and easily solubilized oils, but are often less efficient in removing greasy soils and makeup ingredients that are difficult to solubilize off the skin surface. They also can dry out the skin.
  • Oil-in-water emulsion cleansers while milder on the skin, are generally not very good in removing many cosmetic and makeup residues that contain water-insoluble waxes and other difficult to dissolve generally water-insoluble organic residues.
  • Water-in-oil emulsions tend to be much more effective than oil-in-water emulsions in solubilizing and removing oily soils and greasy residues, but are generally inferior in cleansing water-soluble soils.
  • water-in-oil emulsions sometimes can be irritating to the skin and, if not vigorously rubbed or washed off, can often leave an unwanted -oily residue on the skin.
  • abrasive materials Prior attempts to improve the efficacy of aqueous skin cleanser systems have been made by the inclusion of abrasive materials. Abrasive materials can significantly contribute to the cleaning ability by removing superficial skin cells thereby smoothing or polishing the skin surface. However, the choice of the right particle size for these abrasives creates a dilemma. A coarse particle size may provide some measure of increased abrasive cleaning power but also increases the risk of scratching the skin surface. A fine particle size may provide some smoothing and polishing of the skin surface but generally is less effective in soil removal .
  • Anhydrous skin cleansers sometimes called waterless cleansers, typically contain high concentrations of water-insoluble solvents, which makes them generally effective at removing oily soils from the skin, but less effective in removing water-soluble soils.
  • anhydrous skin cleansers typically are not cosmetically elegant having a heavy, greasy feel making them unappealing to the touch and are not easily removed from the skin. They generally must be wiped off with toweling, leaving the skin feeling greasy or washed off with strong soap, leaving the skin feeling harsh and " dry.
  • the present anhydrous skin cleansers provide skin cleansing and polishing in a cosmetically aesthetic vehicle while, at the same time, leaving the skin exceptionally soft, smooth and moisturized.
  • the present invention relates to substantially anhydrous skin cleansing and polishing formulations, preferably in gel form, and a method for using these formulations in a manner that enhances their effectiveness.
  • Preferred skin cleanser composition embodiments of this invention are substantially anhydrous gels comprising: a) at least one water-immiscible cosmetic emollient oil, the cosmetic emollient oil comprising a major portion of the formulation; b) at least one oil-gelling agent that is both water-insoluble and oil-insoluble; c) at least one emulsifying agent capable of forming an emulsion, in si tu, on the skin when a small amount of water is added gradually to the substantially anhydrous formulation during use; and d) a substantially crystalline, water-soluble, abrasive material that is substantially insoluble in the substantially anhydrous gel vehicle of the formulation.
  • the present substantially anhydrous skin cleansers have been found to work particularly well when the skin cleanser is first applied to substantially dry, soiled skin and rubbed or massaged into the soiled skin to coat the skin, the so-coated skin portion is then gradually contacted with a small amount of water, preferably of not more than about two parts by weight of the amount of skin cleanser applied, and the rubbing, massaging action is resumed until the skin cleanser forms a cleanser emulsion in si tu on the skin site and continued until the abrasive material substantially dissolves. The resulting cleanser emulsion can then be rinsed off the skin with water.
  • Preferred anhydrous skin cleanser formulations comprise, on a total composition weight basis: a) about 30% to about 90% of cosmetic emollient oil; b) about 1% to about 20% of oil-gelling agent that is insoluble in both water and oil; c) about 1% to about 15% of emulsifying agent that readily forms an emulsion in si tu on the skin when a small quantity of water is added gradually to the anhydrous formulation during use; and about 1% to about 60% of water-soluble, substantially crystalline abrasive material that is substantially insoluble in the anhydrous skin cleanser vehicle.
  • the inventive anhydrous skin cleansers beneficially achieve excellent cleaning of all types of skin residues, remove, rough skin cells, polish the skin surface and leave the skin with a very soft smooth feel.
  • the anhydrous skin cleanser compositions remove oily and greasy soils as well as water-soluble soils and are easy to remove with water while remaining in a cosmetically aesthetic form.
  • Another advantage is that the abrasive material provides sufficient soil removing abrasiveness without irritating or scratching the skin.
  • the beneficial and desirable cleansing efficacy normally attributed to both anhydrous cleansers, water-in-oil emulsions and oil-in-water emulsion are achieved in a single formulation vehicle without the attendant negative afterfeel on the skin typically associated in the prior art with the usage of the individual foregoing cleanser vehicles.
  • substantially anhydrous and “anhydrous” are used interchangeably herein to refer to skin cleanser composition having not more than about 5 weight percent free water content on a total composition weight basis. With reference to substantially crystalline abrasive material, the term “free water content” does not include water of crystallization.
  • substantially anhydrous as applied to abrasive materials, denotes water-soluble, particulate abrasive materials having a particle size sufficient to abrasively remove soil and cellular debris from the skin without scratching or irritating the skin.
  • substantially dry as applied to skin as used herein means that the skin has not been topically moistened or wetted with externally applied water and does not include moisture naturally present in the skin or on the skin from perspiration.
  • the novel anhydrous skin cleanser is preferably in the form of a non-runny gel comprising, on a total compositions weight basis: Ingredients Weight percent a) Water-immiscible about 30 to about 90 emollient oil. b) Oil-gelling agent that is about 1 to about 20 both water- insoluble and . oil-insoluble. c) Emulsifying agent about 1 to about 15 capable of forming an emulsion, in si tu, on the skin when a small amount of water is added to the anhydrous formulation during use. d) Substantially crystalline about 1 to about 60 abrasive material that is water-soluble and substantially insoluble in the anhydrous formulation vehicle. e) Cosmetic adjuvants optional (e.g. fragrance, color, preservatives, antioxidants, keratolytic agents, pH adjusting agents and the like) .
  • Cosmetic adjuvants optional (e.g. fragrance, color, preservatives, antioxidants, keratolytic agents, pH
  • ingredients those skilled in the cosmetic formulation arts are familiar with cosmetically acceptable ingredients and optional cosmetic adjuvant ingredients conventionally employed and commercially available from numerous sources.
  • a comprehensive listing of cosmetic ingredients and suppliers can be found in the International Cosmetic Ingredient Dictionary, (“INCI Dictionary”) Sixth Edition, published by the Cosmetic, Toiletry, and Fragrance Association, Washington, D.C. (1995) .
  • ingredients generally will be referred to by the industry recognized standardized designations commonly referred to as "INCI” names given them in the INCI Dictionary, the relevant disclosures of which are incorporated herein by reference.
  • water-immiscible emollient oils typically used in cosmetic formulations are employed.
  • a suitable weight amount of water-immiscible emollient oil preferably is in the range of about 30 to about 90 weight percent, more preferably in the range of about 40 to about 85 weight percent.
  • cosmetically acceptable water-immiscible oils include, without being limited thereto, linear and branched chain aliphatic hydrocarbons, animal derived oils, vegetable derived oils, silicone oils, esters of fatty acids having at least 7 carbon atoms in the fatty chain, C 7 -C 18 aliphatic and aromatic alcohols and mixtures thereof.
  • Exemplary water-immiscible linear aliphatic hydrocarbons are preferably petroleum derived hydrocarbons including, but not limited, to mineral oil, paraffin oil, petroleum jelly, and the like.
  • Exemplary branched chain aliphatic hydrocarbons include, but are not limited thereto, isododecane, isohexadecane and the like.
  • Exemplary water-immiscible animal derived oils include, but are not limited to, lanolin oil, mink oil, fish oils, milk fat and the like.
  • Exemplary water-immiscible vegetable derived oils include, but are not limited to, sweet almond oil, sunflower oil, coconut oil, babassu oil, palm oil, palm kernel oil, corn oil, peanut oil, grape seed oil, safflower oil, poppy seed oil, sesame seed oil, wheat germ oil, avocado oil, olive oil, soybean oil, meadowfoam seed oil, jojoba oil and 5 the like and mixtures thereof.
  • Exemplary water-immiscible silicone oils include dimethicone, cyclomethicone and the like;
  • Exemplary water-immiscible emollient esters include, but are not limited to, isopropyl myristate, 10. isopropyl palmitate, octyl pal itate, octyl stearate, isocetyl stearate, caprylic/capric triglycerides, decyl oleate and mixtures thereof .
  • Exemplary C 7 -C 18 aliphatic and aromatic alcohols include, but are not limited to, heptanol, octanol and 15 the like.
  • oil-gelling agents that are insoluble at 25°C in water and in oil are employed.
  • a suitable weight amount of oil-gelling agent is in the range of about 1
  • the final gelled formulations preferably have a viscosity in the range of about 5 to about 250 poise.
  • gelling agents include, without being limited thereto, 25 clays and organically modified clays, silicas, soaps of fatty acids having at least 11 carbon atoms in the fatty chain and a Group IA, IIA or IIIA metal ion, aluminum/magnesium hydroxide stearate gels and mixtures thereof .
  • Exemplary oil-gelling clays and organically modified clays preferably include, without being limited thereto, bentonites, hectorites, montmorillonites, organophilic clays, such as Stearalkonium hectorite, Quaternium-18 hectorite, Quaternium-18 bentonite and the 35 like.
  • Organically modified clays are frequently commercially provided in pre-gelled form, sometimes called mastergels, which include a relatively low quantity of a wetting or swelling agent such as propylene carbonate.
  • Examplary pre-gelled organically modified clays include, without being limited thereto, mastergels sold under the trade names of Miglyol (Condea) , Tixogel (Sud-Chemie) and Bentone Gel (Rheox) .
  • Exemplary silicas preferably include, without being limited thereto, finely divided silicas that are colloidal in nature having a particle size in the range of about 0.005 to 0.05 microns; magnesium aluminum silicate and the like. Suitable colloidal silicas are commercially sold under the trade names of Cab-0-Sil (Cabot Corp.) and Aerosil (Degussa) . Exemplary soaps are preferably non-toxic Group IA,
  • Group IA metal soaps are preferably sodium and potassium salts; exemplary Group IIA metal soaps are magnesium salts, and Group IIIA metal soaps are preferably aluminum salts. Particularly preferred, without being limited thereto, are magnesium stearate, aluminum stearates. Useful aluminum/magnesium hydroxide stearate gel are sold under the trade name of Giuligels (BK-Giulini) .
  • Emulsifiers capable of forming an emulsion,, in si tu, on the skin during use, when the skin cleanser gel is contacted gradually with water are employed on a total composition weight basis in an amount preferably in the range of about 1% to about 15%, more preferably in the range of about 2% to about 10%.
  • HLB Hydrophile-Lipophile-Balance value assigned to emulsifiers, most commonly nonionic emulsifiers, relating to the water solubility of the emulsifier.
  • anhydrous skin cleansers of the present invention readily formed an emulsion when the anhydrous skin cleanser gel vehicle
  • the skin cleansing gel of this invention beneficially retains the oily soil removal efficacy usually attributable to water-in-oil emulsions
  • Exemplary emulsifying agents include, without being limited thereto, ethoxylated carboxylic acids, ethoxylated glycerides, glycol esters and derivatives thereof, monoglycerides, polyglyceryl esters, polyhydric alcohol esters and ethers, sorbitan/sorbitol esters, triesters of phosphoric acid, ethoxylated fatty alcohols, propoxylated polyoxyethylene (POE) ethers and the like and mixtures thereof.
  • ethoxylated carboxylic acids ethoxylated glycerides, glycol esters and derivatives thereof, monoglycerides, polyglyceryl esters, polyhydric alcohol esters and ethers, sorbitan/sorbitol esters, triesters of phosphoric acid, ethoxylated fatty alcohols, propoxylated polyoxyethylene (POE) ethers and the like and mixtures thereof.
  • POE propoxylated polyoxyethylene
  • glyceryl stearate PEG-100 stearate, sorbitan stearate, PEG-40 stearate, steareth-2, steareth-20, steareth-100, polysorbate-20, laureth-1, laureth-23 and the like.
  • ester and ether emulsifiers and suppliers thereof can be found in Chapter IV of Rieger, Surfactant Encyclopedia, 2nd Edition, published by Cosmetics & Toiletries ® magazine, Allured Publishing Corporation, Carol Stream, IL (1996) , the relevant disclosures of which are incorporated herein by reference.
  • One or more substantially crystalline, water-soluble abrasive materials are employed, preferably having sufficient water solubility such that at least 20 parts by weight of the abrasive will dissolve in 100 parts by weight of water at 20°C, and which are insoluble in the anhydrous skin cleanser formulation vehicle.
  • the particle size of the abrasive crystalline material should be sufficiently large to serve as a scrubbing agent against the skin to remove dirt and cellular debris, such as rough dead skin cells, and yet not so large as to scratch or irritate the skin.
  • a preferred particle size in the range of about 50 to
  • an amount of substantially crystalline abrasive material employed is in the range of about 1% to about 60%, more preferably in the range of about 2% to about 50%.
  • Examplary water-soluble/vehicle-insoluble, substantially crystalline abrasive materials include, without being limited thereto, Dead Sea salt, salts of Group IA and IIA metals and ammonia, sugars, urea and water-soluble urea derivatives, such as allantoin.
  • Dead Sea salts are generally heterogeneous mixtures of crystalline and powder mineral salts obtained from the Dead Sea in Israel.
  • a preferred exemplary Dead Sea salt is commercially sold by the Dead Sea Works Ltd., Beer-Sheva, Israel, and reportedly has the following typical composition:
  • Exemplary granular, water-soluble salts of Group IA and IIA metals and ammonia preferably include, without being limited there »to, sodium chloride, potassium chloride, magnesium chloride, calcium chloride, ammonium chloride, sodium sulfate, potassium sulfate, magnesium sulfate, sodium nitrate, potassium nitrate, magnesium nitrate, calcium nitrate, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, ammonium bromide, sodium bromide, calcium bromide and the like and mixtures thereof.
  • Exemplary granular sugars include, without being limited thereto, cane sugars, beet sugars, water-soluble saccharides and polysaccharides .
  • Urea and highly water-soluble urea derivatives can be obtained in prill or pellet form and milled to a granular, free-flowing powder, if desired. Additional benefits can be obtained with the anhydrous skin cleansers of this invention, by incorporating water-soluble abrasive ingredients that have high exothermic or endothermic heats of solution, such as magnesium chloride, ammonium chloride, magnesium sulfate and the like, in sufficient amounts to produce a discernible cooling or warming sensation to the touch during use. As small amounts of water are added while continuing to rub the product on the skin, depending on whether the heat of solution of the abrasive is endothermic or exothermic, formulations can be made which become cooler or warmer to the touch.
  • anhydrous skin cleanser compositions of this invention can be prepared by heating together the
  • a preferred method embodiment for using substantially anhydrous skin cleansers formulated according to the invention comprises the following steps .
  • the rubbing action preferably is a gentle rubbing or massaging for a period of at least about 5 seconds, preferably about 5 to about 30 seconds, to promote the removal of oily or greasy, water- insoluble soils and skin cell residues.
  • Step “b” is preferably performed by wetting the fingers with tap water at ambient room temperature and massaging the skin cleanser coated skin with the wet fingers, and incrementally adding further small amounts of water in the same manner as desired. Alternatively, a measured amount of water can be applied, if desired.
  • the total weight amount of water added is preferably in a weight range of about 0.1 to not more than about 2 times the amount of skin cleanser formulation applied to the skin. Dissolution of the abrasive ingredients can be determined during step “b” by a change in the tactile characteristic of the skin cleanser on the skin from grainy to smooth.
  • Step "c” the emulsion can also be wiped off first and the wiped skin can be then rinsed.
  • the novel skin cleansers are readily and conveniently removable from the skin by rinsing with water, thereby eliminating the need for tissues or towels and avoiding disposal or laundry problems attendant with the use thereof.
  • Anhydrous skin cleanser formulations prepared with the ingredients and ranges proposed above have been found to possess a surprising combination of beneficial effects when used on soiled skin.
  • soil as applied to skin includes soils from natural sources, such as cellular debris present on the skin, and soils from external sources topically applied to the skin, such as from makeup, cosmetics, industrial greases, and environmental dirt .
  • the anhydrous skin cleansers thoroughly cleanse the skin of makeups and other water-immiscible cosmetic residues. They effectively remove various types of oily and greasy soils from the skin surface and difficult to solubilize residues.
  • the anhydrous skin cleansers remove rough and dry skin cells. Moreover, the anhydrous skin cleansers smooth and polish the skin surface and leave the cleansed skin unusually soft and moisturized.
  • anhydrous skin cleanser cleanses the skin.
  • the combination of emollient oils helps dissolve oil-soluble greases and other makeup and cosmetic residues as well as removing environmental soils.
  • the abrasives assist - in scrubbing off non-dissolved dirt and rough dead skin cells.
  • the low HLB emulsifier initially allows the formulation to take in water to form a water-in-oil or multiphase emulsion, which assists in solubilizing additional soils off the skin while also removing water-soluble residues.
  • the high HLB emulsifier assists in either forming a multiphase emulsion, such as a water-in oil- in-water emulsion or in inverting the emulsion to an oil-in-water emulsion, which helps in rinsing the soil containing skin cleanser from the skin.
  • the anhydrous skin cleanser was applied to body skin that was soiled with both oily and water-soluble materials by rubbing the anhydrous skin cleanser onto the skin with a massaging motion for about 10 seconds so that the skin was thoroughly coated.
  • the coated skin was then moistened with a small amount of water by wetting the fingers of one hand and rubbing the skin with the wetted fingers until the anhydrous skin cleanser coating formed a white cream emulsion visible on the skin and the abrasive Dead Sea salt dissolved (i.e., salt crystals were no longer detected to the touch or visible in the emul * sion) .
  • the so formed skin cleanser emulsion was then removed from the skin by rinsing with tap water and the cleansed skin dried.
  • the dry cleansed skin was visually very clean, smooth and soft with no trace of harsh dryness normally associated with the use of abrasive cleaners.
  • the anhydrous skin cleanser formulation was applied following the procedure described above, except that the step of moistening the coating was omitted and the skin cleanser was rinsed off the skin with running tap water and then dried. Although the skin was clean and felt soft, smooth, and moisturized, the efficacy was judged overall to be less than that achieved when it was applied in the manner described above .
  • This example illustrates an anhydrous skin cleanser gel suitable for use as a facial skin cleanser.
  • the anhydrous skin cleanser gel was used for facial cleansing and moisturizing by hand applying the skin cleanser onto the face and gently massaging the anhydrous skin cleanser over the face for several seconds.
  • the palms of • both hands were then slightly moistened with water and the massaging process continued. The process of moistening the palms and massaging was repeated until the sugar crystals could no longer be felt.
  • the face was then rinsed and dried. Makeup and other facial soils had been removed and the face felt unusually soft, smooth and moisturized.
  • This example illustrates an anhydrous skin cleanser gel suitable for use as a hand cleanser.
  • the anhydrous skin cleanser gel was applied on hands that were soiled with a greasy automotive residue.
  • the skin was then moistened with a small amount of water and rubbed until all the grittiness of the crystalline sucrose could no longer be fel .
  • the cleanser was then rinsed from the skin with water.
  • the cleansed hands were clean and had a pleasing soft feel.
  • This example illustrates an anhydrous skin cleanser having the additional benefit of imparting a cooling effect on the skin.
  • the anhydrous skin cleanser was applied and rubbed onto the skin of the forearm, a small amount of water was added and rubbing continued.
  • the cleanser coated skin became noticeably cooler. Additional quantities of water were incrementally added and rubbing continued until all the ammonium chloride crystals had dissolved and an emulsion had formed on the skin.
  • the emulsion cleanser was then rinsed from the skin with water. The skin was clean, soft and smooth.
  • This example illustrates an anhydrous skin cleanser having a cooling effect on the skin.
  • the skin cleanser was applied to soiled skin that was judged rough and dry and rubbed into the skin. After rubbing for about 30 seconds, the skin was moistened with water and rubbing the cleanser coated skin was resumed until an emulsion formed on the skin. The cleanser emulsion was rinsed from the skin with water and the cleansed skin dried. The skin was judged as having a lubricous smooth feel, and much of the roughness had disappeared.
  • This example illustrates an anhydrous skin cleanser suitable for use on the feet .
  • the anhydrous skin' cleanser gel was applied and massaged onto the skin of one foot . After massaging for about 20 seconds, one hand was moistened with water and the massaging continued with the water wet hand. The process of moistening the hand and continuing massaging was repeated until the abrasive salt crystals had dissolved sufficiently so that they could no longer be felt and the cleanser had formed an emulsion on the skin. The cleanser emulsion was then rinsed from the foot with water and dried. The cleansed, treated foot was judged to be considerably softer, smoother and had less rough dead skin cells on its surface than the untreated foot .
  • This examples illustrates a self-warming anhydrous skin cleanser gel .
  • the anhydrous skin cleanser gel was first rubbed onto rough dry skin and then a small amount of water was added with continued rubbing.
  • the skin cleanser began to form a cream as water was taken into the oil-based gel and a pronounced discernible warming effect was noted as heat was liberated by the dissolving magnesium sulfate. The process was continued until the abrasive magnesium sulfate crystals could no longer be felt and an emulsion had formed on the skin.
  • the cleanser emulsion was then rinsed off the skin with water and the skin dried. The rough dead skin cells had been removed and the skin felt soft and moisturized.
  • the amount of warming generated by Formula 7 was measured by placing 10 grams of the anhydrous skin cleanser gel into an insulated cup, then adding 5 grams of water and mixing. The mixture was continuously stirred to form an emulsion and the rise in temperature measured. The temperature of the added water was about 15°C and the temperature of the mixture, within one minute, increased to about 53°C.
  • Example 8 This example illustrates an anhydrous skin cleanser gel suitable for use as an in-shower, all-in-one, body cleanser, scrub, polisher and moisturizer.
  • the skin cleanser gel was used as follows. Before becoming wet in the shower, the skin cleanser gel was hand applied all over the body and massaged for about one minute. Both hands were then moistened in the stream of the shower and the body massaging process continued. The process of wetting the hands and continuing to massage was continued until all the Dead Sea Salt had dissolved and abrasive particles could no longer be felt and an emulsion had formed. The cleanser emulsion product was then rinsed off the body in the shower. After drying, the skin had an unusually clean and fresh appearance. It felt smooth, soft and appeared as if a moisturizing agent had been applied.
  • Example 9 This example illustrates an anhydrous skin cleanser gel suitable for use as a rough skin cleanser and smoother.
  • the anhydrous skin cleanser gel was applied and rubbed onto rough dry skin of the knee for about 10 seconds .
  • a small amount of water was added by moistening the hand and the rubbing continued with the moistened hand.
  • Another small amount of water was similarly added while continuing to rub the * product onto the knee.
  • the cleanser emulsion product was rinsed off with water and the knee dried. The cleansed skin on the knee was much smoother and softer than before the cleansing treatment.
  • This example illustrates an anhydrous skin cleanser gel suitable for use as a hand cleanser.
  • Steareth-2 3 Steareth-20 1
  • the anhydrous skin cleanser gel was applied and rubbed onto rough dry hands that were heavily soiled with greasy residue . A few drops of water were then added and the skin cleaner continued to be rubbed in until the gritty feel of the salt disappeared as it dissolved and an emulsion formed on the skin. The hands were then rinsed with water and dried. The oily soil was completely removed and the hands were left with a soft, very smooth feel.

Abstract

L'invention concerne des nettoyants anhydres, sous forme de gels, de préférence, comprenant de l'huile émolliente immiscible dans l'eau ; un agent gélifiant d'huile insoluble dans l'eau et dans l'huile ; un agent émulsifiant formant une émulsion in situ sur la peau lorsque le nettoyant est progressivement mis en contact avec une quantité relativement faible d'eau lors de son utilisation ; et une matière abrasive hydrosoluble, sensiblement cristalline, insoluble dans l'excipient du nettoyant anhydre. Les gels nettoyants anhydres permettent d'éliminer les saletés grasses et hydrosolubles de la peau de façon esthétique du point de vue cosmétique. Lors de leur utilisation, les gels nettoyants préférés permettent de former une émulsion nettoyante rinçables à l'eau in situ, sur la peau.
PCT/US2001/014570 2000-05-08 2001-05-07 Nettoyant anhydre WO2001085103A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/333,671 US20030211062A1 (en) 2001-05-07 2001-05-07 Anhydrous skin cleaners
AU2001261211A AU2001261211A1 (en) 2000-05-08 2001-05-07 Anhydrous skin cleansers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US20240900P 2000-05-08 2000-05-08
US60/202,409 2000-05-08

Publications (1)

Publication Number Publication Date
WO2001085103A1 true WO2001085103A1 (fr) 2001-11-15

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AU (1) AU2001261211A1 (fr)
WO (1) WO2001085103A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
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WO2004009101A1 (fr) * 2002-07-19 2004-01-29 Shomer Janos Composition de gel contenant des sels de mer
FR2843541A1 (fr) * 2002-11-06 2004-02-20 Oreal Composition demaquillante transparente
WO2005004820A2 (fr) 2003-07-02 2005-01-20 Colgate-Palmolive Company Composition
EP1539003A1 (fr) * 2002-07-11 2005-06-15 GRIMES, Pearl E. Composition de microdermabrasion et trousse associee
WO2005063198A1 (fr) * 2003-12-19 2005-07-14 Colgate-Palmolive Company Composition anhydre de nettoyage et de purification de la peau
WO2007093558A2 (fr) * 2006-02-14 2007-08-23 L'oréal Article cosmetique soluble
US7297668B2 (en) 2003-04-03 2007-11-20 Colgate-Palmolive Company Composition
WO2009144139A1 (fr) * 2008-05-30 2009-12-03 Evonik Stockhausen Gmbh Produits nettoyants pour la peau et les mains
US20130209589A1 (en) * 2010-10-04 2013-08-15 II William R. Williams Insect repelling methods and compositions

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US5148951A (en) * 1990-11-21 1992-09-22 The Procter & Gamble Company Container with flexible resilient dispensing sheet for viscous and semi-solid cleaning compositions
US5888951A (en) * 1996-11-04 1999-03-30 L'oreal Foaming composition for cleaning the skin

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148951A (en) * 1990-11-21 1992-09-22 The Procter & Gamble Company Container with flexible resilient dispensing sheet for viscous and semi-solid cleaning compositions
US5888951A (en) * 1996-11-04 1999-03-30 L'oreal Foaming composition for cleaning the skin

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1539003A4 (fr) * 2002-07-11 2010-06-02 Orchid Scient Inc Composition de microdermabrasion et trousse associee
EP1539003A1 (fr) * 2002-07-11 2005-06-15 GRIMES, Pearl E. Composition de microdermabrasion et trousse associee
WO2004009101A1 (fr) * 2002-07-19 2004-01-29 Shomer Janos Composition de gel contenant des sels de mer
FR2843541A1 (fr) * 2002-11-06 2004-02-20 Oreal Composition demaquillante transparente
US7297668B2 (en) 2003-04-03 2007-11-20 Colgate-Palmolive Company Composition
EP1660027B1 (fr) * 2003-04-03 2010-02-10 Colgate-Palmolive Company Composition
AU2004227932B2 (en) * 2003-04-03 2009-02-05 Colgate-Palmolive Company Composition
US7309496B2 (en) 2003-07-02 2007-12-18 Colgate-Palmolive Company Composition
AU2004255241B2 (en) * 2003-07-02 2009-05-28 Colgate-Palmolive Company Anhydrous skin cleansing composition
WO2005004820A3 (fr) * 2003-07-02 2005-04-21 Colgate Palmolive Co Composition
WO2005004820A2 (fr) 2003-07-02 2005-01-20 Colgate-Palmolive Company Composition
WO2005063198A1 (fr) * 2003-12-19 2005-07-14 Colgate-Palmolive Company Composition anhydre de nettoyage et de purification de la peau
WO2007093558A2 (fr) * 2006-02-14 2007-08-23 L'oréal Article cosmetique soluble
WO2007093558A3 (fr) * 2006-02-14 2008-01-10 Oreal Article cosmetique soluble
WO2009144139A1 (fr) * 2008-05-30 2009-12-03 Evonik Stockhausen Gmbh Produits nettoyants pour la peau et les mains
US8211841B2 (en) 2008-05-30 2012-07-03 Evonik Stockhausen Gmbh Skin and hand cleansers
RU2517128C2 (ru) * 2008-05-30 2014-05-27 Эвоник Дегусса Гмбх Очищающее средство для кожи и рук
US20130209589A1 (en) * 2010-10-04 2013-08-15 II William R. Williams Insect repelling methods and compositions
US9161546B2 (en) * 2010-10-04 2015-10-20 II. William R. Williams Insect repelling methods and compositions

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