Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Liposomes
Patent
1994-12-30
1997-10-21
Kishore, Gollemudi S.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Liposomes
424401, 514859, 514846, A61K 9127, A61K 700
Patent
active
056793740
ABSTRACT:
Compositions which comprise a first dispersion of lipid vesicles which are capable of penetrating into the deep layers of the skin and which contain at least one active agent chosen from antimicrobial agents, antiseptic agents, antibiotics, anti-inflammatory agents, anti-seborrhoeic agents, retinol and the derivatives thereof, for treating these deep layers, and a second dispersion of lipid vesicles which are capable of penetrating into the surface layers of the skin and which contain at least one active agent chosen from keratolytic agents, protective agents, moisturizing agents and antioxidants, for treating these surface layers, are particularly effective for the treatment of acne.
REFERENCES:
patent: 4217344 (1980-08-01), Van le berghe
Lasch et al. "How deep do intact liposomes penetrate into human skin?", J. q controlled release 18, #1, Jan. 1992 pp. 55-58.
Fanchon Chantal
Ribier Alain
Segot Evelyne
Simonnet Jean-Thierry
"L'Oreal"
Kishore Gollemudi S.
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