PROBLEM TO BE SOLVED: To provide a novel cell growth promoter, collagen production promoter and anti-wrinkle agent.SOLUTION: A palla-cinnamic acid derivative represented by formula (1) is provided. The compound has high cell growth promotion effect, collagen production promotion effect and anti-wrinkle effect, and further, when being applied to skin, the compound performs cell growth promotion and collagen production and/or prevents wrinkles.