US 7,468,464 B2
Resorcinol derivatives for skin
Bijan Harichian, Brookfield, Conn. (US); and Jose Guillermo Rosa, Shelton, Conn. (US)
Assigned to Unilever Home & Personal Care USA, division of Conopco, Inc., Greenwich, Conn. (US)
Filed on Feb. 06, 2008, as Appl. No. 12/26,933.
Application 12/026933 is a continuation of application No. 11/084601, filed on Mar. 18, 2005.
Prior Publication US 2008/0131382 A1, Jun. 05, 2008
Int. Cl. C07C 39/04 (2006.01); C07C 39/23 (2006.01)
U.S. Cl. 568—716  [568/763] 7 Claims
 
1. A cosmetic method of skin lightening comprising applying to the skin a composition comprising:
(a) a compound comprising the formula:

OG Complex Work Unit Drawing
Wherein
X1 and X2 are independently represented as hydrogen (H), linear or branched, saturated or unsaturated C1-C12 alkyl, alkenyl, or acyl groups;
R1=linear or branched, cyclic or acyclic, saturated or unsaturated C1-C12 alkyl, alkenyl, cycloalkyl, or cycloalkenyl group;
n=0,1; and
when n=0, the ring is cyclopentyl with or without one heteroatom from O, N or S and/or with or without one double bond; or
when n=1, the ring is cyclohexyl with or without one heteroatom from O, N or S and/or with or without one double bond and R1 is not methyl; and
(b) a cosmetically acceptable carrier.