Hair keratin-reducing mono, di- and triglycerides of cysteine an

Details Hair keratin-reducing mono, di- and triglycerides of cysteine an Hair keratin-reducing mono, di- and triglycerides of cysteine an

1994-10-27

1996-04-02

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Live hair or scalp treating compositions

Permanent waving or straightening

424 705, A61K 709, A61K 706

Patent

active

055038263

ABSTRACT:
The new keratin-reducing substances useful in compositions for permanent shaping of hair are glyceryl esters of cysteine, especially the monoglyceryl esters. As monoglyceryl esters of cysteine 2-amino-3-mercaptopropionic acid-(2',3'-dihydroxypropyl)ester and 2-amino-3-mercaptopropionic acid-(1',3'-dihydroxyisopropyl)ester are particularly preferred. A preferred embodiment of the compositions for permanent shaping of hair consists of a ready-to-use mixture of a water-free component including at least one glyceryl ester of cysteine and at least one other component which is kept physically separately from the water-free component until the mixture is prepared. The compositions also can include other conventional ingredients normally used in permanent shaping compositions such as surfactants and thickeners. The compositions have a preferred pH range of 6.0 to 8.5 and contain from 8 to 28 percent by weight of the glyceryl esters of cysteine.

REFERENCES:
patent: 3629452 (1971-12-01), Kalopissis
patent: 4218435 (1980-08-01), Shiba
patent: 4322401 (1982-03-01), Harada
patent: 4956175 (1990-09-01), Maignan
patent: 4992267 (1991-12-01), DenBeste et al.
patent: 5085860 (1992-02-01), Junino
patent: 5334377 (1994-08-01), Junino
patent: 5350572 (1994-09-01), Savaides

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