Repair and improve skin, whiten and remove spots, anti-wrinkle and anti-aging, anti-inflammatory, angiotensin converting enzyme inhibitor. Polypeptides have various biological activities, which have been proved to be effective in pouch, dark circles, moisturizing and hydrating, eyelash growth, hair loss prevention, anti-ultraviolet, anti-allergic, breast enhancement and slimming, and the corresponding products have been developed and marketed.