Pharmaceutical or cosmetic composition containing hydroquinone a

Details Pharmaceutical or cosmetic composition containing hydroquinone a Pharmaceutical or cosmetic composition containing hydroquinone a

1992-07-17

1994-01-18

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Liposomes

424 62, 424420, 424401, A61K 9127, A61K 702

Patent

active

052798348

ABSTRACT:
The invention relates to a cosmetic or pharmaceutical composition, containing hydroquinone and kojic acid or a derivative thereof, especially the salts or esters thereof. The hydroquinone and/or kojic acid component is in a form which is at least partially incorporated into liposomes.
The combination of these components in liposomes makes it possible to obtain a synergistic effect in their use as topical formulations, especially dermatological or cosmetic compositions, especially for their skin-lightening activity.

REFERENCES:
patent: 3856934 (1974-12-01), Kligman
patent: 4241046 (1980-12-01), Papahadjopoulos
patent: 4696813 (1987-09-01), Higa
patent: 4797285 (1989-01-01), Barenholz et al.
patent: 4847267 (1989-07-01), Deckner et al.
patent: 4990330 (1991-02-01), Oyama
Kenkyusho Chem Absts 102, 1985 #12207k.

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