Take 2 to 4 Hammer Anti-Fatigue capsules one hour prior to training, and you'll stay strong and prevent cramps in multi-hour events. Thoroughly tested over several years in the most extreme athletic endurance events, Anti-Fatigue Caps help remove fatigue-causing, energy-robbing ammonia. During extended endurance exercise the body accumulates excess ammonia from protein metabolism, which interferes with glycogen production, disrupting energy output. Anti-Fatigue Caps are a one-of-a-kind product combining three well-known ammonia-scavenging nutrients. By cleaning up the waste products of combustion, you’ll ride stronger for longer!