WHAT IS TRIB 750? TRIB 750 is a formula created using natural ingredients that have been proven to increase free testosterone in the body. HOW DOES TRIB 750 WORK? TRIB 750 works first by increasing luteninizing hormone(LH) in your body, stimulating testosterone production, then by freeing up testosterone that's stuck to other compounds in your body. Increasing free testosterone in your body through two separate paths. WHAT CAN INCREASING MY FREE TESTOSTERONE LEVELS DO? Increasing free testosterone levels has proven effective in helping athletes gain more lean muscle mass and lower body fat content. Taking this supplement may also result in a noticeable increase in libido.