| abstract |
A type I collagen production promoter, an anti-aging agent and a wrinkle improving agent having an excellent type I collagen production promoting action are provided. [Solution] It shall contain one or more species selected from plants of Ryukyu-chiku (scientific name: Pleioblastus linearis Nakai), Japanese abalone (scientific name: Ficus pumila Linn.), And tuna (scientific name: Tetragonia tetragonioides), or an extract thereof. . [Selection figure] None |