Magnolia Back Extract Product name: Magnolia Back Extract Latin name: Magnolia officinalis. Part used: Bark Active Ingredient:Honokiol Appearance: Yellow fine powder Product Content: Honokiol40% Product Origin: Extracted from the stem of Opuntia dillenii Haw. Action and Uses: Honokiol, a compound extracted from the Chinese medicinal herb Magnolia officinalis, has a strong antioxidant effect on the inhibition of lipid peroxidation in rat heart mitochondria. To investigate the protective effect of honokiol on hepatocytes from peroxidative injury, oxygen consumption and malondialdehyde formation for in vitro iron-induced lipid peroxidation were assayed, and the mitochondrial respiratory function for in vivo ischemia-reperfusion injury were evaluated in rat liver, respectively.