Patent ID: 8235974

Claim:
A method of removing hair from an area of skin of a mammal, comprising: administering topically to a skin area a composition comprising a compound of formula: R 2 R 3 N—CH 2 COCH 2 —CH 2 COOR (I) wherein R is a polyethylene glycol chain of formula: ((CH 2 ) 2 —O) n R′ (II) wherein n is an integer from 1 to 5 and R′ is a lower alkyl from C1 to C3, and wherein R 2 and R 3 each separately represent H, or an unsubstituted alkyl, or a substituted alkyl, wherein substituents are selected from aryl, acyl, halo, hydroxy, amino, aminoalkyl, alkoxy, acylamino, thioamino, acyloxy, aryloxy, aryloxyalkyl, mercapto, thio, azo, oxo or fluoroalkyl groups, saturated and non-saturated cyclohydrocarbons, and heterocycles, or represent an alkyl chain interrupted by oxygen, nitrogen, sulfur or phosphor atoms, or an alkoxycarbonyloxy, alkoxycarbonylalkyl or methane group, and irradiating said skin area with optical energy having a light flux of less than 80 mW/cm 2 and a wavelength above 600 nm after administration of said composition, wherein said skin area is submitted to said irradiation within a time interval of between from 5 minutes to 10 hours starting from the beginning of the administrating of said composition.