No, I don't want to buy anyway

Anyway, Sinkewitz has confessed to `doping' using a Gel that elevated his testosterone and so did Moreni?

Could someone explain how this works? Or if its been covered before any links that would help someone with limited understanding of biology/chemistry.

I'm just confused as to how rubbing a little gel (as Skinewitz seems to claim) the day before a stage, would really cause your Testosterone levels to soar. Would this really be effective?