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Preservation of cosmetic compositions
| Details |
Inventors: Purohit, Prakash C.; Ramdeen, Lal G.;
Assignee: Aveda Corporation (Minneapolis, MN)
Primary Examiner: Rollins; John W.
Assistant Examiner: Catchpole; W.
Attorney, Agent or Firm:
A cosmetic composition containing a dermatologically acceptable carrier or vehicle and certain essential oils as a preservative. The essential oil provides antimicrobial assurance against Apergillus niger, Candida albicans, Staphylococcus aureus and Pseudomonas aeruginosa. A method of preparing the preserved cosmetic composition is also described. |
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DETAILED DESCRIPTION What is claimed: 1.
A method of preserving a cosmetic composition from microbial action of the microorganisms Aspergillus niger, Candida albicans, Staphylococcus aureus and Pseudomonas aeruginosa comprising incorporating into said cosmetic composition an essential oil having antimicrobial activity against all four of said microorganisms, wherein said antimicrobial essential oil is a mixture of essential oils having the following composition by weight:
______________________________________
Percentage
By Weight Essential Oil
______________________________________
20.
00 Linalool ex Bois de Rose
5.
00 Geraniol ex Palmarosa
5.
00 Lemongrass 80% rectified
20.
00 Bois de Rose
20.
00 Cedarwood Oil
5.
00 Marjoram Oil
2.
00 Cinnamon Bark Oil
2.
00 Cardamon Oil
3.
00 Neroli Bigarde Petals Oil
2.
00 Vanilla Resinoid
5.
00 Coriander Oil
2.
00 Oakmoss empuree
2.
00 Armoise Oil
5.
00 Menthol Crystals laevo
2.
00 Rose absolute concrete wax
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and wherein said antimicrobial essential oil is incorporated into said cosmetic composition by first dissolving said antimicrobial essential oil in a polyoxyethylene sorbitan ester wherein the ratio by weight of said sorbitan ester to said antimicrobial essential oil is in the range of 2:1 to 6:1 and adding said resulting sorbitan ester and essential oil mixture to said cosmetic composition in an amount to provide said antimicrobial essential oil in said cosmetic composition of at least 2% by weight of said cosmetic composition.
2.
A method as defined in claim 1 wherein said composition is a cosmetic cream or lotion.
Description:
BACKGROUND OF THE INVENTION 1.
Field of the Invention This invention relates to the preservation of cosmetic compositions, which contain a dermatologically acceptable carrier or vehicle, against four microorganisms, namely Aspergillus niger, Candida albicans, staphyloccus aureus and Pseudomonas aeruginosa
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