This is a special product the recipe formulated by myself many good reviews on this. Been told it comes on like a light its a amazing preworkout site enhancement. Product doesn't have any toxic Solent like guiacol. Only issue is needs be heated on high heat for 5-10mins pre workout I would personally inject the muscle I wanted into target most out of my session. Eg if I was to train back and bicep and I wanted to grow my biceps more I would inject 0.5 pre workout in both biceps or vice versa muscle of target