Composition for promoting synthesis of collagen, and composition for external preparation for skin comprising the same

摘要

The present invention relates to a composition for promoting collagen synthesis and a composition for external application to skin which includes the collagen synthesis promoting composition. The collagen synthesis promoting composition includes, as an effective component, at least one selected from the group consisting of compounds represented as: wherein R is hydrogen, a methoxy group, or a 3-methyl-2-butenyl group. The composition for external application to skin includes at least one collagen synthesis promoting component selected from the group consisting of compounds represented by above.