90 percent of the tongkat ali on Amazon is junk. Anyway, Amazon does not vouch for what tricksters sell, and guarantees for nothing. Look at their top tongkat ali: Indonesia Tongkat Ali. Seller website: indonesiatongkatali.com. Web spam top to bottom. Photos just downloaded from the web. No own tongkat ali photos. No photos about their tongkat ali business operations. Fooling readers with alleged alcoholic extraction. No certification. Use at your own risk. Amazon does not pay medical expenses.
Anybody who cares to look this up in a textbook on the endocrine (hormonal) system, will quickly find out the following: the first effect of every hormone is to produce its antidote. The term for this is “negative feedback”.
And every person’s hypothalamus (a nuts-size organ deep inside the brain that functions as a hormonal regulator) has its own, genetically encoded ideas on what appropriate levels of each hormone, including testosterone and dihydrotestosterone, should be.
When athletes take small amounts of testosterone or anabolic steroids, they will not effect higher net levels of testosterone. What happens instead is this: first the body will stop its own production of testosterone (leading to testicular athtophy = balls as small as marbles, penises the size of matchsticks… not quite that small, but not much bigger than the size of cigarettes). Furthermore, the hypothalamus will have every weapon in its arsenal kick in to counteract testosterone levels it considers too high.
Mind you, testosterone in high dosages has been found effective as, guess what? … A male antibaby pill, haha. It works because exogenous testosterone in supernatural dosages awakens so many countermechanisms that sperm quality is highly compromised.
Tongkat ali is no testosterone, not even a testosterone agonist. As has been shown in animal studies, it causes testicular and penile growth. So, the tongkat ali must somehow signal the hypothalamus that the testicles should produce more testosterone because there isn’t enough around.
And what happens then? The additional testosterone will cause more antidotes to circulate as well.
But wait a moment. Tongkat ali is a complex mixture of pythochemicals. And the hormonal system is not as fast as the nervous system. To establish hormonal homeostasis (the hormonal balance the hypothalamus is genetically programmed to aim for) can take hours, even days.
So, you can see that hormonal levels, when they are brought out of their sleepy balance, will vary in a wavelike manner.
You signal the hypothalamus through tongkat ali that testosterone levels are too low. So the testicles produce more testosterone… likely overshooting the homeostatic target. So the hypothalamus counteracts by producing antidotes.
But the tongkat ali clears from the system via the kidneys and liver. And then the antidotes are on too high a level.
So then, the hypothalamus tells the testicles: Man, we need more testosterone.
And so on, “auf und nieder, immer wieder” (for those who do not speak German, up and down, time and again)
I have been getting reader mail on tongkat ali for 10 years. Every now and then, there is somebody who tells me he recently had the best sex ever… during a tongkat ali off-cycle. How can that be… I know it, and if you have read this article until here, you know, too.
A person who gets his sexual kick during an off-cycle will likely have a long hypothalamic reaction time. With the tongkat ali, he has provoked a hormonal anti-tongkat ali response, and that, in turn, has provoked testicular over-productivity.
The majority of people feel the testosterone push during on-cycles, but a minority experiences it during off-cycles.
Either way, tongkat ali is responsible for the psychological and physiological benefits of youthful testosterone levels.
Because the one thing that robs aging people of the pleasures of life, and causes accelerated aging, is dormant testosterone production, leading to homeostasis on a low level.
For hormones involved with sexuality, tongkat ali is like an alarm clock. It disturbes the sexual tranquility which is but a prelude to death.
1 Sarina Md. Yusof , Zaiton Zakaria, Aminuddin Abd. Hamid Karim, Suhana Aiman, Zulkifli Kadir, Enhancement Effects of Tongkat Ali (Eurycoma longifolia) Supplementation on Performance Functions Following Strength Training in Middle-Aged Women, Chapter Proceedings of the 2nd International Colloquium on Sports Science, Exercise, Engineering and Technology 2015 (ICoSSEET 2015)
2 Singaram, N. Teo, C.K.H. (Sains Malaysia Univ., Penang (Malaysia). School of Biological Sciences) , Factors affecting the biomass production of tongkat Ali (Eurycoma longifolia),
4 Rajeev Bhat, A.A. Karim, Tongkat Ali (Eurycoma longifolia Jack): A review on its ethnobotany and pharmacological importance, Fitoterapia Volume 81, Issue 7, October 2010, Pages 669–679