Dietary supplement. HPLC tested for potency. Supports liver health; Potent antioxidant; Relieves hangovers. Pro Liver is scientifically formulated to support liver health. Pro Liver contains research-proven amounts of N-Acetyl-cysteine and a potent extract of milk thistle standardized to contain over 80% Silymarin. (These statements have not been evaluated by the food and drug administration. This product is not intended to diagnose, treat, cure or prevent any disease.)