Abstract: This study presents an overview of the types and quantities of functional components in Antarctic krill oil and summarizes the skin-care effects and mechanisms of each component. The ingredients of Antarctic krill oil primarily comprise phospholipids, astaxanthin, tocopherols, and polyunsaturated fatty acids. These components play significant roles in alleviating skin inflammation, combating photoaging, assisting psoriasis treatment, moisturizing, and promoting wound healing, thus conferring moisturizing and skin-repairing benefits. Through comprehensive analysis of animal studies and some clinical trials, the skin care mechanism of Antarctic krill oil are elucidated through anti-inflammatory, antioxidant, gene expression regulation, cellular repair, and wound healing pathways. Finally, the potential of Antarctic krill oil in protecting the skin is pointed out and the limitations existing in current research are analyzed, establishing a foundation for future applications of Antarctic krill oil in skin-care.

Key words: Antarctic krill oil, functional properties, skin-care, bioactive mechanism, research progress