The true and original Human Grade Trenbolone was released under the brand name "Parabolan" by a company named Negma France. They discontinued it in 1991 I think.
There was a gap from 1991, till about 2000 where there was NO Trenbolone available in the market. There TONS of bootleg Parabolan on the scene that had lot numbers and expiration dates pre-1991, and dealers would tell people it was part of a few left over in some warehouse... In reality it was mostly Deca or Test Prop... I was a kid when Parabolan was around and never got to use it in that form.
Around the year 2000, this guy name "Animal" was big on the internet scene. He was one of the original research/powder guys. He sold tons of legal sups and some research in powder and pill for. You could get like 1 Kilo of CLA from him in 700mg caps, in a clear plastic bag with "CLA" written in black marker... Animal was the guy who made the Fina Kits popular. He brought Trenbolone back from the dead by creating the process that would extract Trenbolone Acetate from the Finaplix H cattle pellets... You could buy the pellets from a Vet shop online without any proof of owning a cow AND the conversion kit from Animal thru PayPal legally!!!! It only became a crime after you used the Kit to make injectable Trenbolone Acetate from the pellets... Some of the old schoolers who had a chance to try Parabolan back in the day told me that Parabolan was much better than homebrewed Trenbolone Acetate... For one the Parabolan was actually Trenbolone Cyclomethylhexocarbonate, a longer ester that could be injected weekly, and it was made for human use... Trenbolone Acetate needed EOD injection and it was dirty from having been extracted from the cattle pellets.
BTW- I hate Trenbolone and wont use it anymore, or recomend anybody use it either.