Antioxidants and herbs support the body's natural defences, protect cells from oxidative stress and contribute to overall health. Life Extension's dietary supplements contain powerful antioxidants such as resveratrol and fisetin, which support cell health and slow cell aging. Swanson offers a wide selection of herbal extracts including ashwagandha, oregano and Japanese ashitaba, which have beneficial effects on the immune system, digestion and detoxification of the body. Quicksilver Scientific focuses on highly absorbable forms of vitamin C, glutathione and coenzyme Q10 to support cardiovascular health and cell regeneration. The antioxidants in these products help neutralize free radicals, protect DNA and promote long-term vitality.