Polypeptide may cause allergic reaction. Generally speaking, polypeptide cosmetics can improve skin morphology, eliminate wrinkles, make skin smooth and delicate, make skin cells metabolize vigorously, and make skin softer. But at the same time, peptides are likely to make the skin itchy, thus causing allergic reactions. I suggest you pay attention to whether you are allergic to polypeptide cosmetics when using them. Polypeptide has many benefits to human skin. The first is good moisturizing performance. Moisturizing micromolecule peptides and ionized amino acids are important components of natural moisturizing factors and have strong water retention. Peptides contain a large number of hydrophilic genes (amino, hydroxyl, carboxyl) on the surface of molecular three-dimensional structure, which can absorb a lot of water and form a skin film on the skin surface. Nutritional small molecular peptides have strong permeability to skin, can combine with skin epithelial tissue through stratum corneum, participate in and improve skin cell metabolism, enhance collagen activity in skin, maintain moisture and fiber structural integrity of stratum corneum, enhance blood circulation, provide nutrition for cells, and achieve the effect of nourishing skin.

Polypeptide has the effects of moisturizing or nourishing, anti-aging, wrinkle removal and whitening. It can directly penetrate into dermis, replenish lost collagen, restore skin elasticity, promote cell metabolism and delay cell aging. It can make skin fine wrinkles stretch and make skin soft and smooth. In addition, small molecular peptides also contain factors that dilute pigments, which can reduce the production of melanin. Small molecular peptides also have the effects of renewing skin and diminishing inflammation. It is recommended to keep a good mood at ordinary times.