Oats contain abundant glucans, which are obtained from oat using advanced biological extraction and separation techniques β- Dextran, which has a unique linear molecular structure of (1,3), (1,4) - P-D glucan, is a refined colorless and odorless liquid that is easy to add to the formula. oats β- Glucan can stimulate macrophages, activate the immune system, produce cytokines that promote wound healing, protect cells, and delay skin aging. It has been proven to be a natural protective film with soothing, hypoallergenic, restorative, and protective properties for the skin. Has a significant deep moisturizing effect on the skin, fast and long-lasting.