Supports Liver Function! Promotes Glutathione Production! Softgels For Improved Solubility!Promotes Glutathione Production! Softgels For Improved Solubility! Milk Thistle (Silybum marianum) has been used by traditional herbalists for centuries. Clinical and non-clinical studies have indicated that Milk Thistle extract may help maintain healthy liver function through its ability to promote glutathione production, as well as by supporting the bodys normal detoxification processes.NOW Extra Strength Silymarin has three times the Milk Thistle Extract (450 mg per softgel) as in our regular strength product (150 mg per capsule). Note: Manufacturers continually change product specifications. While we try our best to keep product descriptions up to date, they do not necessarily reflect the latest information available from the manufacturer. We are not responsible for incorrect or outdated product descriptions and/or images.