The reason why Yangshengtang natural birch juice hydrating and moisturizing series burns on the face is that the skin barrier is destroyed by external environmental factors, and the epidermis of the dermis is too sensitive to protect, so when the chemicals in hydrating come into contact with the skin, it will produce irritation and tingling. So Yangshengtang's natural birch juice hydrating and moisturizing series will burn on your face.