Hyaluronic acid or a supported film and thin cosmetic of its derivatives

The present invention provides a handling property, moisturizing effect, the thin-film and thin cosmetic excellent in unevenness correction effect. Thin film according to the present invention are (a) a substrate film having supported thereon a hyaluronic acid or a derivative thereof, and (b) support, are laminated, the thickness of the (a) layer 10~500nm it is characterized in.