Milk Thistle (Silymarin) 250mg - 100 CapsulesPuritan's Pride Milk Thistle provides 250mg of standardized extract derived from Silybum marianum seeds, guaranteed to contain a minimum of 80% Silymarin. This herbal supplement is made from a concentrated extract of the purple milk thistle flower, a plant that has been valued in Greek practices for over 2,000 years. Silymarin is the beneficial active component extracted from milk thistle seeds and belongs to a group of plant based nutrients called