Magnolia bark extract We are one of the leading manufacturer of plant extracts, herb extracts and botanical extracts in china. We can supply all kinds of standardized extracts and ratioed extracts. Now we can supply the magnolia bark extract with the following specification: Magnolol 30-98% min (hplc) Honokiol 30-98% min (hplc) Magnolia bark (magnolia officinalis) is a traditional chinese medicine (where it is known in tcm as houpu or hou po) used since 100 a.D. For treating "stagnation of qi" (low energy) as well as a variety of syndromes, such as digestive disturbances caused by emotional distress and emotional turmoil. Magnolol and honokiol are the bioactive constituents of the bark of magnolia officinalis. Both are phenolic compounds in which honokiol is an isomer of magnolol. Recently, a number of studies have shown that magnolia extract is benefit for the health of humanf+s brain and heart. Through further research, it indicates that all the functions of magnolia extract owe to the action of magnolol and honokiol. It can protect the brain from alzheimer's disease. As strong antioxidants, it can do good to cardiovascular health. Several studies have tested magnolia extract on human cancer cells and found it has the function to inhibit the growth of cancer tumors. It can help calm nerves and alleviate anxiety without side effect. It can inhibits bacteria and pathogenic fungi. According to the customers' request