Ultra Bulk is a blend which contains 3 esters : Testosterone Enanthate 150 mg, Trenbolone Enanthate 150mg and Equipoise 150mg.it is mainly used for body builders who want a strong muscular physique, increase in muscle which improves endurance and metabolism. It can lower side effects significantly It works by easing the inner muscles causing the blood vessels to widen which means more energy and more endurance.it improves lean muscle growth, strength gains and maximum power output