Silybin is extract from the seed of silybum marianum(L) Gaentm, through extraction, concentration, re-extraction. It is similar white or light yellow powder. It is also colorless, odorless, little soluble in water, CHCL3, and hexane, very difficult soluble in ethanol and ethanol. Actions: for preserve liver We've manufactured this kind of product for many years and we've done too much researchment on it. We can do all kind of specificationsfrom80-99%. We have8 complete lines specially in extracting the plant extract,the quantity of Silymarin is about 50T per year. Welcome to our company! Welcome to visit our product.