earticle

영어

The skin is an important body barrier composed of the epidermis, dermis, and subcutaneous fat layer, and it protects the body from external foreign substances or stimuli and maintains moisture. The skin gradually ages due to internal and external factors, and ultraviolet rays, reactive oxygen species, and dryness are the main causes of skin aging. In order to improve this skin aging, various functional cosmetics are being developed, and these mainly include various natural products and compounds with effects such as antioxidant, whitening, wrinkle improvement, and antibacterial. Recently, as the safety and effectiveness evaluation of cosmetic materials has become important, various evaluation methods have been introduced to confirm skin compatibility and efficacy. Accordingly, this paper focuses on the mechanisms related to skin aging and the efficacy of functional cosmetics, and aims to present evaluation methods for the development of safe and effective cosmetics.