1, different sources: Peach gum is a resin secreted by the bark of peach or Prunus armeniaca in Rosaceae. Snow weir is the pith secretion of Malva, which is made by cutting the trunk of Malva artificially, collecting colloidal secretion and air drying.

2. Different ingredients: The main ingredients of peach gum are galactose, rhamnose and glucuronic acid. Xueyan contains galacturonic acid, galactose, fucose, xylose and arabinose.

3, the production method is different: Peach gum can be secreted naturally, or it can be secreted after the wound is produced under the action of external force, and the viscous liquid is evaporated by the sun to produce solids. Snow weir is made by cutting the trunk of Malva, manually cutting the bark, collecting colloidal secretions and air drying.