Problem to be solved: to provide a composition excellent in the permeability of the amino acid and the derivative thereof, which has excellent permeability to the skin, has no odor, and does not change over time, has no sticky feeling, and has a feeling of residual feeling while having a sense of infiltration.A specific acyl tyrosine and its salts, and at least one selected from the group consisting of a particular acyl phenyl alanine and its salts(b) a composition comprising at least one selected from the group consisting of (b) an amino acid and its derivatives (but excluding (a) above).No selection【課題】アミノ酸及びその誘導体の皮膚への浸透性に優れ、かつ臭いやその経時変化がなく、しっとりしながらべたつきがなく、浸透感を有しながら肌残り感を有するなどの使用感に優れた組成物を提供する。【解決手段】特定のアシルチロシン及びその塩、並びに特定のアシルフェニルアラニン及びその塩からなる群より選択される少なくとも一種、並びに(B)アミノ酸及びその誘導体(但し、前記(A)を除く)からなる群より選択される少なくとも一種を含有する組成物。【選択図】なし