Milk thistle (Silybum marianum) has been used for 2,000 years for liver and biliary problems as liver protectant. Research suggests that extracts of milk thistle seeds (Silymarin) may : Increase the rate of protein synthesis in liver cells, and encourage subsequent repair after injury to the cells from toxic chemicals and medications. Act as antioxidants and scavenges free radicals that can damage cells exposed to toxins. Milk Thistle Extract (Silymarin) supports liver function by supporting liver cell rejuvenation. BestSource Nutrition’s Milk Thistle Extract is standardized to 80% Silymarin, (an active ingredient). Extraction is done by unique technology. This high quality natural milk thistle extract from its seeds is manufactured in premium facility using state of the art technology and closely controlled process.