It’s a known fact that broccoli has potent cell-defending power, but if you want to make the most of it, you’ll have to eat an awful lot of the green stuff. Not to worry, Swanson GreenFoods Formulas brings you Sulforaphane from Broccoli Sprout Extract, the best sulforaphane supplement at the best value. This sulforaphane supplement features BroccoPhane broccoli sprout powder with guaranteed levels of broccoli's key master nutrient. Sulforaphane boosts your body's anti-oxidizing ability and supports skin health and cognitive function.