Twenty years of victory by professional and amateur athletes have demonstrated that Hammer products are the most potent and effective endurance supplements on the market. Every formula they make is designed to enable you to get the most benefits possible from all of your hard work. Your total satisfaction is guaranteed with every product they make. Hammer products contain no stimulants, adaptogens, pro hormones or banned substances and they are 100% legal for all forms of sanctioned competition. Go Faster - Guaranteed.