Test Booster by MK677 Direct is something we have spent months developing to perfect the formula. We have carefully picked ingredients at optimal dosages which have been shown in many studies to increase testosterone levels. As usual, our capsules have been manufactured specifically for us and are not white labelled garbage like many other products on the market. We are heavily involved in the manufacture process. Our capsules are Super Strengthed and the amounts shown on the label are PER CAPSULE, Not "per serving" like many other misleading products on the market. Suggested serving is 2 capsules per day so one tub will last a month.