Peptides are short chains of amino acids, which are the building blocks of proteins. They are smaller than proteins but larger than individual amino acids. Peptides play crucial roles in various biological processes in the body. In skincare and cosmetics, peptides are often used as ingredients in products because they can provide several benefits for the skin. Different peptides can have different effects, such as helping to improve skin elasticity, reduce the appearance of wrinkles, promote collagen production, and enhance overall skin health. These skincare peptides are designed to target specific skin concerns and are commonly found in anti-aging and skincare products.