Papain is an enzyme derived from the latex of the papaya fruit. It is known for its ability to break down proteins, making it useful in various applications, including meat tenderizing and digestive health. In addition to its culinary uses, papain is also found in some skincare products due to its exfoliating properties. It can help remove dead skin cells and promote a smoother complexion. Overall, papain is valued for its versatility in both food and cosmetic industries.