Skin lightening agents, compositions and methods

   
   

Cosmetic compositions and methods of skin lightening using compounds of formula I as skin lightening agents: ##STR1## Wherein X represents Carbon, Nitrogen, Sulfur or Oxygen; each A.sub.1 and/or A.sub.2 independently is =H or COR, CO.sub.2 R, CONHR having the following formula A: ##STR2## where R=C.sub.1 -C.sub.18 saturated or unsaturated, linear or branched, hydrocarbon; and each Y.sub.1 and/or Y.sub.2 independently is C.sub.1 -C.sub.18 saturated or unsaturated hydrocarbon or OZ, where Z=H or COR.sup.1, CO.sub.2 R.sup.1, CONHR.sup.1 of formula B: ##STR3## and where R.sup.1 =C.sub.1 -C.sub.18 saturated or unsaturated, linear or branched, hydrocarbon.

Composiciones y métodos cosméticos de aligeramiento de la piel usando compuestos del fórmula I como agentes del aligeramiento de la piel: ## del ## STR1 En donde X representa el carbón, el nitrógeno, el sulfuro o el oxígeno; cada A.sub.1 y/o A.sub.2 está independientemente = H o el CORAZÓN, CO.sub.2 R, CONHR que tiene la formula a siguiente: ## del ## STR2 donde R=C.sub.1 - C.sub.18 saturado o no saturado, linear o ramificado, hidrocarburo; y cada Y.sub.1 y/o Y.sub.2 es independientemente C.sub.1 - hidrocarburo de C.sub.18 u onza saturado o no saturado, donde Z=H o COR.sup.1, CO.sub.2 R.sup.1, CONHR.sup.1 del fórmula B: ## del ## STR3 y donde R.sup.1 = C.sub.1 - C.sub.18 saturado o no saturado, linear o ramificado, hidrocarburo.

 
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