It discovered in the Viacen skins of some grapes as well as some of the seeds. Can be present in red wine although content material varies. In small amounts it is with red grape juice, boiled peanuts along with foods.n tits." After some steroid cycles, Testosterone Booster production slows and estrogen increases. The user will develop female breast growth unless they take an estrogen suppressant during post cycle treatment plan. I experienced this personally. It is not very exciting.