Optimun Nutrition's Tribulus works since it actually contains furastanol saponins, one of which is protodioscin, the main active ingrdient. As a practitioner of alternative medicine I have noted that response to this product is individual. The recommended dosage is adequate for some, while others may need to take upwards of 6 or 8 pills a day to get a good wallop. Many tribulus products contain the saponins without the active ingredient and are nothing more than humor pills. It does pack a testosterone effect and an LH effect which shows up as increased scrotal volume which you can measure by water displacement.
Tribulus is a member of a triad of herbs, all of which produce a strong LH effect: namely tribulus, fenugreek, and dioscorea. All of these will increase your scrotal volume, raise libido, imrove performance, and have an anti depressant effect. Fenugreek in doses of 5 to 6 grams brings about almost instant scrotal growth; hence a favorite among body builders wanting to get their nuts back, But beware, it is a prolactin booster, so prolonged high dosing can bring on aromatization and breast development. After getting the desired effect I suggest cutting back to 1.5 to 2.0 grams a day with an increase in tribulus dosing. The LH effect builds the testosterone effect in the form of testosterone, with conversion to DHT inhibited by fenugreek. Sustained high testosterone often leads to aromatization to estradiol which can augment the breast development. On the other hand tribulus stimulates conversion to DHT. DHT does not aromatize. Each man has a comfort zone with respect to the ratio of testosterone to DHT; thus each user will eventfully find his tribulus dose comfort zone. DHT is required for the development of the the male organs. DHT also promotes libido. The higher the DHT the greater the development. Large male equipment goes with higher conversion to DHT and consequently higher libido. All the puberty changes depend on DHT. Dioscorea works like tribulus but differs in that it contains progesterone like substances, a hormone needed by both sexes for well being and satisfactory performance. In excess it also leads to breast development. Generally speaking, recommended dosing will not stimulate breast development except for doses recommended for that purpose. Dioscoria may inhibit conversion to DHT. A judicious mix of tribulus, fenugreek, and dioscorea can erase 20 to 30 years off the age of an older man's equipment and give the older man a much more satisfactory life. High levels of testosterone can lead to aromatization. This is least likely with tribulus since it promotes conversion to DHT.
I mentioned water displacement; here is how it is done. Get a can that is 10 cm diameter. Nut cans holding 326 grams or more of nuts work the best. (pun intended). Fill with warm water and push up over your scrotum using a finger to break the seal. Push repeatedly till no more water comes out. To calculate volume use Pi times radius squared times depth in cm. Pi is 3.14. The finger can be ignored since it is in all the measurements. Make the measurement first thing in the morning. LH effect varies through the day and is max when you get up. Good sleep raises it. Many things affect it. Measurements will vary from about 200 to 460 cc. 500cc is probably as high as it will go. To go over 500 you will need a deeper can.
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