Multi-Ester Test 400 contains a combination of 5 fast and slow acting testosterone esters. It increases the bodies testosterone levels within 1-2 days of injection with it's Testosterone Acetate and then slowly allows for more longer stable levels as the longer esters become active. The longest ester in the blend is its Decanoate ester which allows it to have an active life of around 14 days. It's a very popular compound for bulking cycles. Ifs characteristics help promote health and well-being through enhanced libido, increased fat loss, gaining and maintaining lean muscle mass. Its combination with additional compounds both injectable and oral make it a great addition of any potent cycle.