Cosmetics alpha-hydroxy acids

Tung RC, Bergfeld WF, Vidimus AT, Remzi BK (2000) Alpha-hydroxy acid-based cosmetic procedures. Guidelines for patient management. Am J Clin Dermatol 1(2) 81-88... 

Many major cosmetic companies have marketed antiaging creams and skin-renewal products containing alpha hydroxy acids as the miracle ingredients. These particular components are easily identified in a list of a lotion s ingredients, provided you know some simple chemistry nomenclature. 

Alpha Hydroxy Acids in Cosmetics. U.S. Food and Drug Administration, FDA Bac. grounder, July 3,1997, http //vm.cfean.fda.gov/ dms/cos-aha.html... 

Glycerol is a widely used humectant and moisturizer in cosmetics, and considerable research has been done on its effect on the stratum corneum functionality (75). Glycerol was identified as an effective agent in the formation of lipid crystals under conditions of low humidity. The use of alpha- and beta-hydroxy acids on skin desquamation is now well established and widely practiced (76). New lipophilic variants of salicylic acid are reported to affect comeodesmolysis by acting on the whole stmcture of the comeodesmosomes. Alpha-hydroxy acids fractionate the cor-neodesmosomes only (77). 

Alpha-hydroxy acids application as cosmetics and as peels... 

Because of such test results, cosmetics companies have set guidelines suggesting that concentrations of alpha-hydroxy acids in skin products should be no more than 10% for over-the-counter use and no more than 30% for professional salon use. The acid content is included on the labels of many products, and manufacturers can also provide the information. 

Cosmetic products with alpha-hydroxy acids. 

Some substances have special labeling instructions (e.g., FDA suggests that the labeling of a cosmetic product that contains an alpha hydroxy acid (AFFA) and that is intended for topical application to the skin or mucous membrane should carry instructions that convey the following information Sunburn Alert This product contains an alpha hydroxy acid (AHA) that may increase your skin s sensitivity to the sun and particularly the possibility of sunburn. Use a sunscreen and limit sun exposure while using this product and for a week afterwards. ... 

Broad pH surfactant compatibility characteristics have contributed to greater usage of amphoteric surfactants in a variety of leave-on cosmetic and skin treatment products. These include alpha hydroxy acid treatment creams, skin desquamation aids, cleansing gels, and massage creams. Excellent skin... 

Kempers S, Katz Hl.Wildnauer R, Green B.An evaluation of the effect of an alpha hydroxy acid-blend skin cream in the cosmetic improvement of symptoms of moderate to severe xerosis, epidermolytic hyperkeratosis, and ichthyosis. Cutis 1998 61 347-50. 

Greaves MW 1991 Topical alpha-hydroxy acid derivatives for relieving dry itching skin. Cosmetics and Toiletries 105 61 Griffin TD, Van Scott EJ 1991 Case of pyruvic acid in the... 

Takahashi M, Machida Y 1985 The influence of hydroxy acids on the rheological properties of stratum comeum. Journal of the Society Cosmetic Chemists 36 177-187 Van Scott EJ 1989 Alpha hydroxy acids procedures for use in clinical practice. Cutis 43 222-228... 

Van Scott EJ, Yu RJ 1989 Alpha hydroxy acids therapeutic potentials. Canadian Journal of Dermatology 1 108-112 Van Scott EJ, Yu RJ 1994 Alpha hydroxy acids science and therapeutic use. Cosmetic Dermatology 7(10S) 12-20 n Scott EJ, Yu RJ 1978 Modulation of keratinization with alpha hydroxy acids and related compounds. In Frost P, Comez EC,... 

Ingredients are basically allowed, restricted or banned according to the annexes of the EU Cosmetics Directive but some discrepancies are in force (i.e. restrictions for alpha-hydroxy acids or AHAs, essential oils, arbutin, etc.) (Ddpartement fdddral de fintdrieur, 2004). To date Switzerland is the only country in Western Europe imposing a tax on the volatile organic compounds (VOCs) content of cosmetics. 

Uses Intermediate In lubricants, pharmaceuticals, polymers, metal extraction, textiles, inks, photography, rubber provides silky, nonolly feel to skin In personal care prods, and cosmetics, esp. alpha-hydroxy acid skin treatments Features Exc. oxidative stability remains water-wh. when exposed to air and high temp. 

Alpha-hydroxy add (AHA) peels produce the best results if they are preceded by careful preparation and followed by long-term daily cosmetic care. Easy Phytic solution, on the other hand, does not allow any pre-peel preparation that is likely to accelerate penetration of the acids, as the stratum corneum must be intact for the peel to be safe. 

Sodium C12-14 olefin sulfonate CAS 85536-12-5 EINECS/ELINCS 287-492-2 Synonyms Sulfonic acids, C12-14-alkane hydroxy and C12-14-alkene, sodium salts Definition Mixt. of long chain sulfonate salts from sulfonation of C12-14 alpha olefins consists of sodium alkene sulfonates and sodium hydroxyalkane sulfonates Uses Surfactant in cosmetics food-pkg. 

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