This invention discloses a skin care compositions of cosmetic, which rosepeptide having the ingredients of Pal-KVK b-AH is added in aqueous cosmetic solution, so as to further enhance the effectiveness of anti-aging and skin whitening of skin care cosmetics. The rose peptide is the compositions of Palmitoleic acid ester, Lysine, Valine, beta-Alanine, and Histidine. This invention discloses a skin care compositions of cosmetic, which rosepeptide having the ingredients of Pal-KVK b-AH is added in aqueous cosmetic solution, so as to further enhance the effectiveness of anti-aging and skin whitening of skin care cosmetics. The rose peptide is the compositions of Palmitoleic acid ester, Lysine, Valine, beta-Alanine, and Histidine.一種化粧品之護膚組成物,係於水性化粧品溶液中添加Pal-KVK b-AH成分之玫瑰胜肽(Rosepeptide),使作為皮膚保養之化粧品得進一步提昇其抗老化及美白皮膚之功效,其中所述玫瑰胜肽(Rosepeptide)為下式。