P-hydroxycinnamamide derivatives and melanin inhibitor comprisin

Details P-hydroxycinnamamide derivatives and melanin inhibitor comprisin P-hydroxycinnamamide derivatives and melanin inhibitor comprisin

1987-07-23

1989-10-24

Robinson, Ellis P.

Drug, bio-affecting and body treating compositions

Bleach for live hair or skin

564170, 514617, D61K 778, C07C10376, C07C10378

Patent

active

048760846

ABSTRACT:
A novel melanin inhibitor comprising as an active component a p-hydroxycinnamamide derivative of the following general formula (I) ##STR1## in which R.sub.1 represents a hydrogen atom or a 2-hydroxyethyl group, and R.sub.2 represents a hydroxymethyl group or a carboxyl group.
The melanin inhibitor may take various forms such as a lotion, an emulsion, a cream, an ointment, a gel and the like, and it is locally applied onto affected parts such as spots and freckles on the skin, and a pigmental deposition after sunburn.

REFERENCES:
CA90(23):187307d Van Brussel, W. and Van Sumere C. F. 1979.

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