Provided is a highly stable and safe cosmetic with excellent anti-wrinkle effect. Further provided is a superior collagen production promoting agent. This anti-wrinkle cosmetic, or collagen production promoting agent, contains a cysteine derivative represented by general formula (I), or a salt thereof [In the formula, X and Y are independently OR1 or NHR2 (In these formulae, R1 and R2 are independently a hydrogen atom or a C1-22 alkyl group.); Z represents a hydrogen atom or a C1-22 alkyl group; and W represents a C1-22 alkyl group, a C1-22 alkoxy group or a C1-22 alkylamino group.).