The in-depth research on the biological activity of Periplaneta americana and its extract has garnered significant attention due to its potential effects on anti-aging,soothing,anti-sensitivity,and repairing damaged skin.This extract is rich in protein,amino acids,vitamins,and other nutrients,offering a variety of functions.Furthermore,it possesses antioxidant,anti-inflammatory,and antibacterial effects,which can enhance skin quality and alleviate skin issues caused by inflammation or infection.Additionally,it has the capacity to stimulate collagen synthesis and skin  regeneration, making it valuable in combating aging and repairing damaged skin.Moreover,it aids in soothing the skin,thereby reducing sensitivity and redness.This paper provides a brief summary of the current research status of the functional components,pharmacological effects,and efficacy of P. americana in cosmetics.It also discusses the mechanism of action of its extract or active ingredient in skincare,while also prospecting the application of P. americana extract in cosmetics.This offers a theoretical basis for its widespread application in cosmetic development and photomedical beauty,thereby promoting the healthy and rapid development of the P. americana industry.