COSMETIC COMPOSITION FOR PREVENTING SKIN AGING, CONTAINING AS AN ACTIVE INGREDIENT GOLD NANOPARTICLES SURFACE-TREATED WITH PHYTOCHEMICALS

摘要

The present invention relates to a cosmetic composition for preventing skin aging containing, as active ingredients, gold nanoparticles which have been surface-treated with a mixed solution which has one organic acid, selected from gallic acid and protocatechuic acid, and which has isoflavones. The gold nanoparticles (GI-Au NPs, PI-AU NPs) which have been surface-treated with phytochemicals according to the present invention exhibit no cytotoxicity, have a superior antioxidant effect, have a superior skin-regenerating effect due to the suppression of skin cell collagen cleaving enzymes (MMP-1 and MMP-8), and have a superior superoxide dismutase (SOD) activity and thus a superior degree of antioxidation in skin cells, and therefore may be useful as a cosmetic composition for preventing skin aging.