Thorne Research Crucera-SGS is an advanced antioxidant formula made from broccoli seeds for long-lasting cell protection. Extracted from select broccoli varietals, this formula contains sulforaphane glucosinolate (SGS), a natural substance that acts as an indirect antioxidant. Unlike typical antioxidants, such as vitamin C and E, SGS provides extended protection from free radical damage for several days. Upon ingestion, Crucera-SGS releases sulforaphane, activating the body's natural detoxification and antioxidant enzymes. Just one capsule is equivalent to consuming two pounds of cooked broccoli. This powerful ingredient was first identified in 1992 and is believed to be the key component in the health benefits of cruciferous vegetables like broccoli, cabbage, cauliflower, and kale. With over 500 journal articles supporting its effectiveness, Thorne's Crucera-SGS is a must-have for long-lasting cell protection. This supplement is NSF Certified for Contents and contains Myrosinase for enhanced bioavailability. It is also gluten-free.