Douglas Laboratories Ultra I-3-C is a dietary supplement for healthy hormone balance and cellular health support. Indole-3-carbonal (I-3-C) belongs to a group of glucosinolates that are sulfur-containing chemicals. These phytochemicals are found in large amounts in vegetables like Brussels sprouts, broccoli and cauliflower. I-3-C serves as an antioxidant while stimulating detoxification enzymes and providing support for normal hormonal metabolism. Recommended use: Take 1 capsule daily or as directed by a healthcare professional.