Disclosed is a novel composition which has a function of accelerating production of collagen. The composition has high light stability and is free from side effects such as those of retinoids. Specifically disclosed is a collagen production accelerating composition which contains one or more compounds selected from the group consisting of D-aspartic acid, D-alanine, derivatives of D-aspartic acid or D-alanine and/or salts of D-aspartic acid or D-alanine. The composition may be used for the purpose of suppressing and/or improving skin conditions. The skin conditions may include but is not limited to photoaging and/or wrinkles. The composition may be used for an external preparation for the skin or food. The composition may be a type I collagen production accelerating composition.本發明開發一種具有促進膠原蛋白產生之作用的新穎組合物，且無如類視黃素類之副作用，光穩定性較高之組合物。本發明提供一種含有選自由D-天冬醯胺酸及D-丙胺酸與其等之衍生物及/或鹽所組成群中之一種或兩種以上之化合物的膠原蛋白產生促進組合物。上述組合物有時用於抑制及/或改善皮膚狀態。上述皮膚狀態包括光老化及/或皺紋，但並不限定於該等。上述組合物有時用作皮膚外用劑或食品。上述組合物有時為I型膠原蛋白產生促進組合物。
