Eurycoma 1500 EX from SciFit:

Natural Support For Your Body's Own Production Of Testosterone!

Eurycoma has been used traditionally as an aphrodisiac and libido booster. Scientific studies support its use for this purpose and demonstrate that it is effective at boosting sexual function and endurance. Eurycoma is the active ingredient in nearly all the post prohormone ban mass builders as well as being a staple in nearly all of the popular sex drive increasing supplements. The main problem with most of these supplements has been that you only get 200mg or less of "pure" Eurycoma. Now Scifit has bottled the strongest Eurycoma supplement on the market... with 750mg per capsule of pure pharmaceutical grade Eurycoma you'll be assured to get max results from this supplement.

Eurycoma is believed to stimulate the production of endogenous testosterone and to reduce the levels of bound and metabolically inactive testosterone in the body. It is believed to achieve this feat through the Leutinizing Hormone (LH) pathway. Consequently, users of Eurycoma commonly report an association between Eurycoma administration and increased feelings of well-being, increased sex drive, improved joint health, greater recovery from exercise of intense but appropriate duration, improved mental focus, and improved immune system function and reductions in body-fat.