80% silymarin. Suggested Serving: As a dietary supplement, take 1 or 2 capsules daily with meals or a glass of water. Milk Thistle (Silybum marianum)(seed extract), (Guaranteed 140 mg [80%] silymarin) 175mg. Other Ingredients: Gelatin (capsule), cellulose, Milk Thistle (seeds), Magnesium Stearate and Silica.