The present invention relates to a cosmetic composition for improving the
skin condition comprising
nicotinamide mononucleotide (NMN). Specifically, the present invention provides a composition comprising a
sponge microneedle, a
lactic acid bacteria exosome, and
ceramide in a weight ratio of 0.6: 3.0: 0.01, the
lactic acid bacteria exosome being obtained by culturing a
Lactobacillus curvatus GFC-AM5 strain (Concentration Number: KCCM12245P) at 37 DEG C for 20 hours and then concentrating the strain by 40 times or more, and the
ceramide being a mixture of the
sponge microneedle, the
lactic acid bacteria exosome, and the
ceramide. Wherein the
nicotinamide mononucleotide (NMN) is contained in an amount of 0.001 to 3% by weight relative to the total weight of the composition. The
sponge microneedle promotes transmission of effective components by forming a microchannel on the
skin surface, the exosome provides a
cell signal transduction function, the NMN promotes
cell energy metabolism by activating an NADbiosynthetic pathway in
skin cells, so that
cell proliferation and regeneration are enhanced, and the ceramide provides a function of strengthening a
skin barrier. Accordingly, the composition of the present invention can simultaneously achieve the effects of improving
skin barrier, activating cells and promoting
wound healing, and can be applied to various cosmetic formulations.