I used a testosterone enhancer calledc Testostrogain for awhile, contains Tribulus and other herbs. Seemed to cause an increase in testosterone level, felt like a teen, can't say for sure though since I didn't have blood test before and after. Apparently the Chrysin in it is importnat to prevent the conversion of excess testosterone to estrogen. If you google the active ingredients there is plenty of research on all of them.
Heres the ingredients:
* One of the best legal natural testosterone enhancing formulas available.
* Time released for maximum effectiveness.
* 3 timed release tablets contains:
* Chrysin (100% pure)..........................................................800mg
* Tribulus Terrestris Extract (from leaves and flowers) 45% saponins...............1500mg
* Saw Palmetto Berry Extract (45% sterols & fatty acids)................200mg
* Nettle Root Extract (std. to 0.8% sterols).........................155mg
* Avena Sativa Extract 10:1 .................................................90mg
* Inodel - 3 Carbinol..............................................................40mg
* Daidzein...................................................................................30mg
* Hawthorn Berry Extract (std. to 5% flavonoids).........................130mg
* Cucurbita Pepo Extract 10:1 (Pumpkin Seed).........................120mg
* Alpha Lipoic Acid......................................................................160mg
* .
* Recommended Daily Dosage : 3 Tablets