Now Energy Extreme Helps supply nutrients to promote sustained energy productionand mental alertness. Provides B vitamins and other cofactors such as chromium, magnesium malate and carnitine. This formula also has tyrosine and iodine to support optimal thyroid function, plus a blend of herbal adaptogens to help your body cope with intense activity. Natural occurring caffeine helps stay alert and supports thermogenesis. Recommended Use: Take 2 capsules daily with 8-12 oz. of water, preferably with a meal. Do not exceed recommended dose.