Hey d3, the 1-TU bottle says 1 pill twice a day. Each pill contains 50mg. Do not exceed 100 mg. The Vitrix - take 6 pills 1 hour before workout. Each pill contains 1000 mg tribulus and 500 mg nts-5. Now I heard of taking the testosterone (Vitrix) in the beginning and end of your cycle. I am assuming I should take it after my cycle only to bring my levels back to normal. Any input would be greatly appreciated!!!!! Thanks again d3