It is a blend of three powerful trenbolone compounds thus the tri parts of name comes. This take the best to best three compounds and roll them into one. These are Trenbolone acetate, Trenbolone enthanate, Trenbolone hexahydrobezylecarbonate, Tri tren is long ester and that means it is slow acting. This also allows the compound to be time released in the body. It provided lean muscle mass and promote fat loss in body. It can be used in bulking cycle.