Perming agent and method of treating hair with the same

Details Perming agent and method of treating hair with the same Perming agent and method of treating hair with the same

1997-11-25

1999-11-30

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Live hair or scalp treating compositions

Permanent waving or straightening

424 705, 424 702, A61K 709

Patent

active

059937947

ABSTRACT:
The present invention provides improved perming agents and perming methods which can minimize damage to hair and simplify perming processes simultaneously and also can relieve a pain of a subject to be permed by shortening time required for a perming operation. The present invention uses a perming agent containing 2-7% of one kind or more than two kinds of mercaptan selected from thioglycolic acid, salt of thioglycolic acid, cysteine and acetyl cysteine and 1.5-17.5% of one or more than two kinds of disulfide selected from dithiodiglycolic acid, salt of dithiodiglycolic acid and cysteine, with a mixing ratio of disulfide to mercaptan being 0.75-2.5 to induce simultaneous progression of oxidation and reduction and, when necessary, in combination with a second agent containing an oxidizing agent for giving permanent wave to hair or curing wavy hair.

REFERENCES:
patent: 4913900 (1990-04-01), Kolc
patent: 5154918 (1992-10-01), Maignan
patent: 5277206 (1994-01-01), Rose et al.
patent: 5637295 (1997-06-01), Lang

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