Indole-3-Carbinol (I3C) is a powerful antioxidant obtained from the cell walls of cruciferous vegetables such as broccoli, cauliflower, cabbage, and brussels sprouts. The compounds in cruciferous vegetables that protect cells from oxidative damage are called indoles, among them Indole-3-Carbinol and its metabolites. These compounds work by binding to or activating certain receptors in the body to protect cells. Indole-3-Carbinol also acts as an antioxdant, helping to rid the body of oxidative damage caused by free radicals. This antioxidant is especially helpful in the metabolism of estrogens, protecting breast tissue and reproductive organs from cell damage. Indole-3-Carbinol is formulated in a base of watercress, a known source of indoles, bringing the total dietary indole content to 200 mg per capsule. It is a patented formula that supports the immune system and is patent pending for applications supporting women with PMS and menopause. I3C is also clinically proven to modulate processes involved in estrogen-dependent abnormal cell growth.