Tri-Tren is an injectable anabolic steroid containing esters of Trenbolone. It includes such esters as Trenbolone Acetate, Trenbolone Enanthate and Trenbolone Hexahydrobenzylcarbonate. This powerful anabolic agent was previously used in veterinary medicine to increase muscle mass and stimulate appetite in pets. As per today, this drug is very popular: it will start to work almost immediately after injection. Trenbolone is able to increase the power rates. Besides, it does not cause body fluid retention, so it is very popular among bodybuilders and powerlifters.