Our Extra-Strength Broccoli Extract gives you a highly concentrated source of antioxidant glucosinolates. It features a state-of-the-art mature broccoli extract called BroccoSinolate, which is standardized to deliver a minimum of 4% total glucosinates for guaranteed antioxidant potency in every capsule. No other broccoli supplement on the market can match the glucosinolate content of this high-powered extract.