Trenbolone Hexahydrobenzylcarbonate (T-6HBC) is also known as Trenbolone Cyclohexylmethylcarbonate, these are two names for the exact same ester chain. This was the very first incarnation of Trenbolone ever made for human use by a pharmaceutical brand (Negma out of France). The manufacturer discontinued the product in 1997 and no other forms of human grade trenbolone have been available since then. All of the Trenbolone on the black market today is either veterinarian grade or made in underground laboratories.
In the late 1990’s when Parabolan was discontinued, the only, and last, human grade trenbolone product disappeared, so bodybuilders started extracting the trenbolone acetate hormone from cattle pellets sold under the brand Finaplix H. The pellets were not meant for human use, but rather as cattle implants to be punched behind the animal’s ear with a pellet gun. Creative bodybuilders used solvents and filters to extract the hormone from the pellets into a vial with injectable oil.
T-6HBC is the only form of trenbolone ever approved for human use.