This item was produced by Negma in France, and for some time was the last remaining injectable worldwide that contained the extremely potent steroid trenbolone. You may associate trenbolone with the long deceased Finajet, a veterinary steroid that was popular in the United States during the 1980’s. Finajet contained trenbolone acetate, which was a very fast acting form of this drug. Parabolan contains a much different ester, trenbolone hexahydrobenzylcarbonate. This ester extends the activity of the drug for more than two weeks, a more suitable design for human use.