A skin lightening composition and method of using the same
AssigneeLever Brothers Company
InventorsGirish Prasad Mathur, Kuruvakkat Kochu Govind Menon, Srinivasan Varadarajan
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Abstract
Skin can be lightened by application of a composition containing a skin lightening amount of niacin and a physiologically acceptable carrier. Such a composition contains from 0.2% to about 10% by weight of niacin and optionally also a compound which absorbs ultra-violet light in the range 290-360 nm to counteract the tanning and burning effect of sunlight.
Claims4
A method of lightening the skin which comprises applying to the skin a composition containing a skin lightening amount of niacin of from 0.2 to about 10% by weight and a physiologically acceptable carrier for niacin.
A cosmetic composition for application to the skin comprising a skin lightening amount of niacin of from about 0.2 to about 10% by weight, from 0.1 to 10% by weight of urocanic acid absorbing in the range of 290-320 nm and a physiologically acceptable carrier for niacin.
A cosmetic composition for application to the skin comprising a skin lightening amount of niacin of from 0.2 to 10% by weight and from 0.1 to 4% by weight of an ultra-violet absorber absorbing in the range of 290-320 nm having the formula ##SPC3##
- wherein R.sup.2 is alkyl having 1-4 carbon atoms, R.sup.3 is alkyl having 4-10 carbon atoms, or an alkoxyalkyl group of the formula --R.sup.4 --O--R.sup.5, wherein R.sup.4 is alkylene having 1-4 carbon atoms and R.sup.5 is alkyl having 1-4 carbon atoms and a physiologically acceptable carrier for niacin.
A cosmetic composition for application to the skin comprising a skin lightening amount of niacin of from 0.2 to 10% by weight and from 0.1 to 4% by weight of an ultra-violet absorber absorbing in the range of 320-360 nm represented by the formula ##SPC4##
- wherein R is an alkyl group containing from 4 to 12 carbon atoms and a physiologically acceptable carrier for niacin.
Dependencies are inferred from the claim text.