Plant Extract, Resveratrol, Food Additive manufacturer / supplier in China, offering Premium Rosemary Leaf Extract Powder with 50% Rosmarinic Acid for Health Care, Factory Rosemary Leaf Extract 98% Rosmarinic Acid Powder Rosa CAS 20283-92-5, Natural White Willow Bark Extract with 25% Salicin for Cosmetic Care and so on.