Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Liposomes
Patent
1991-11-07
1994-03-01
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Liposomes
424 63, 424 70, 424401, 424417, 424420, 4284022, 514880, A61K 9127
Patent
active
052905624
ABSTRACT:
Compositions, for example cosmetic or pharmaceutical compositions, and methods of increasing melanin formation on the skin or scalp employ liposomes including between 0.001 and 10 weight percent, with respect to the total weight of the composition, of tyrosine or a tyrosine derivative selected from the group consisting of an alkali metal salt of L-tyrosine, an alkaline earth metal salt of L-tyrosine, methyl L-tyrosinate, ethyl L-tyrosinate, and stearyl L-tyrosinate.
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Johsi et al, "Involvement of Reactive Oxygen Species in the Oxidation of Tyrosine and Dopa to Melanin and in Skin Tanning", Biochemical and Biophysical Research Communications, vol. 142, No. 1, Jan. 15, 1987, pp. 265-274.
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Dumas Marc
Meybeck Alain
Kishore G. S.
L V M H Recherche
Page Thurman K.
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