# US 4,393,043 A · Solutions containing at least one essential fatty acid and vegetable oil, and cosmetic compositions containing these solutions

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- Number: US 4,393,043 A
- Document ID: US4393043A
- Status: Granted
- Kind: A
- Application number: 06/226,093
- Filed: 1981-01-19
- Granted: 1983-07-12
- Earliest claimed: 1980-01-25
- Assignees: Societe Anonyme dite: L'Oreal
- Inventors: Constantin Koulbanis; Arlette Zabotto; Jacqueline Griat; Jean Charrier
- Web page: https://patentgrep.com/patent/US4393043A

## CPC

- A61K 9/0014: {Skin, i.e. galenical aspects of topical compositions (non-active ingredients are additionally classified in A61K47/00; A61K9/0009, A61K9/0021, A61K9/7015, A61K9/7023 take precedence; cosmetic preparations A61K8/00, A61Q; preparations for wound dressings or bandages A61L26/00)}
- A61K 8/67: Vitamins
- A61K 8/922: {of vegetable origin}
- A61K 47/44: Oils, fats or waxes according to two or more groups of A61K47/02-A61K47/42; Natural or modified natural oils, fats or waxes, e.g. castor oil, polyethoxylated castor oil, montan wax, lignite, shellac, rosin, beeswax or lanolin (synthetic glycerides, e.g. medium-chain triglycerides, A61K47/14)
- A61Q 19/00: Preparations for care of the skin
- A61Q 1/02: Preparations containing skin colorants, e.g. pigments (preparations in powder form A61Q1/12)
- A61Q 1/14: Preparations for removing make-up
- A61Q 17/04: Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
- Y10S 424/05: Stick
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

Essential fatty acids are rendered oxidationstable by mixture with jojoba oil to form a solution.

## Claims

### Claim 1

A cosmetic composition which comprises an oxidation-stable solution of 0.5 to 20% of an essential fatty acid or a mixture of essential fatty acids in a vegetable oil, said essential fatty acid or acids being selected from the group consisting of linoleic acid or an isomer thereof, a conjugated linoleic acid or an isomer thereof, .alpha.-linolenic acid or an isomer thereof, .gamma.-linolenic acid or an isomer thereof, and arachidonic acid or an isomer thereof, and said vegetable oil being jojoba oil in an amount of about 80% to about 99.5% by weight of said solution.

### Claim 2 (depends on 1)

The cosmetic composition of claim 1 in which a mixture of essential fatty acids is present, said mixture being vitamin F.

### Claim 3

An oxidation-stable solution of vitamin F and jojoba oil, said vitamin F being present in an amount of about 0.5 to about 20% by weight, said jojoba oil being present in an amount of about 80% to 99.5% by weight of said solution.

### Claim 4

A cosmetic water-in-oil or oil-in-water emulsion in which the water phase represents 30 to 85 weight percent of the emulsion, the oil phase represents 5 to 60 weight percent of the emulsion and the emulsifier represents 1 to 20 weight percent of the emulsion, said oil phase consisting essentially of an oxidation-stable solution of an essential fatty acid or a mixture of essential fatty acids in a vegetable oil, said essential fatty acid or acids being selected from the group consisting of linolenic acid or an isomer thereof, a conjugated linoleic acid or an isomer thereof, .alpha.-linolenic acid or an isomer thereof, .gamma.-linolenic acid or an isomer thereof, said arachidonic acid or an isomer thereof, said fatty acid or acids being present in an amount of about 0.5 to about 20 weight % of said solution and said vegetable oil being jojoba oil in an amount of about 80% to about 99.5% by weight of said solution and the balance cosmetic ingredients.