The present invention provides a use for probiotic preparing skin care composition, wherein the probiotic comprises Lactobacillus plantarum (GMNL-6) with preservation number of BCRC 910777 or CCTCC M 2017765. The composition may be externally-coating drug, pharmaceuticals for external use, care products for external use or cosmetics, and may achieve the effects of improving the skin conditions or aesthetic appearance by promoting secretion of collagen or expression of ceramide synthase.
