Sprinterguy4
Member
Clearly this is a stimulant and it will improve coordination and fast twitch response. I see conflicting articles on its benefit on sprint performance (100-400m) because of high blood pressure. I know the media hypes the danger of this supplement but what is the heart exploding threshold? I plan on using it 1 bronkaid (25mg ephedrine) preworkout as im not so much interested in the cutting aspect of it