Peach gum is a kind of resin secreted by the bark of Rosaceae plants such as peach or mountain peach, also known as peach oil, peach fat, peach tears, peach gum and peach gum. Is it a peach tree or an external force? Secreting peach gum is beneficial to wound self-healing, and viscous liquid is evaporated by sunlight to produce solid. Dried peach gum is as hard as crystal stone and looks a bit like amber. Peach gum has enough water solubility and proper viscosity, and it becomes soft after being soaked in clear water for more than ten hours. Has the effects of clearing blood, reducing blood fat, relieving stress, resisting wrinkle and rejuvenating skin. The main components of gum are galactose, rhamnose and α -glucuronic acid. Chemicals containing carbon and water, fat, protein and plant collagen.