I purchase MD6 recently and thought that it was all hype for the particular product. Started taking one week ago. The stuff is twice as strong that hydroxycut at maximum dosage. This week I upped and took 3 pills at once. This stuff is strong no b/s. I have taken twinlabs, eas, and xenadrine and nothing compares to this stuff. Just a side note, this stuff is so strong, that yohimbine stuff inside does work and I mean it does work to the tenth degree. This stuff made ejaculate involuntary. That is freaky. I am a true believer of Biotest products. I highly recommend to anybody who is serious about training. The sex drive jump start is just a bonus to this stuff.