Milk Thistle Phytosome 90 Caps by Natural Factors is a natural herbal supplement that provides the body with milk thistle in an easy to absorb form. Milk Thistle Phytosome 90 Caps help to optimize healthy liver function by detoxifying this essential organ which helps to keep the blood clean. Scientific studies have proven that milk thistle is among the most valuable herbal remedies for preventing liver disease caused by alcohol. pollution and chronic hepatitis.