Buy Packs and Save - Nature's Bounty Turmeric is an herbal component with a long history of use in India. The active ingredients in Turmeric include beneficial flavonoids called Curcuminoids, which are plant-based antioxidants.* Antioxidants help fight cell-damaging free radicals in the body.* Free radicals contribute to oxidative stress, which in turn can lead to the premature aging of cells.