New Flavor System! The Ultimate Pre-Training Muscle Builder. Energy. Strength. Intensity. Pumps. Muscle. Muscle building performance & pump. Intense energy, mental focus & drive. Maximum absorb technology. Maximum Strength Caution. "The only supplements good enough to have my name on them". Extra Strength XS. NEW XS Ingredients: CarnoSyn Beta Alanine: Supports Endurance & Combats Fatigue. Betaine Nitrate: Aids in Circulating Nitric Oxide Levels. Adhatoda Vasica Extract: Respiratory & Breathing Support. XR Caffeine: Microencapsulated Releases Slowly Over Time. Acacia Rigidula: CNS & Beta-Receptor Stimulant. Cocoabuterol: Thermogenic & Mood Stimulator. Yohimbe: Drive, Focus & Neuro Stimulant. Manufactured in the USA at cGMP Facility.