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Penis and testicle size after tongkat ali use

Mark Fisher

I have never had a weak ejaculation after ingesting 1 gram of genuine 1:50 extract. I assume that ejaculatory force diminishes for any man as he reaches an age of around 50 and beyond, and in that case I am no exception.

The marked ejaculatory support is a measurable pro-sexual effect of the Tongkat Ali extract I use.

I am a scientifically minded person. I like to observe, but even more I like to use measuring tapes, balances, chemical tests, and all the other tools of the laboratory trade.

Tongkat Ali has been shown to increase testosterone. It is alleged that it does so by stimulating the Leydig cells of the testicles to produce more testosterone. This is different from the action, for example, of Proviron, which acts like the body’s own testosterone and therefore causes the Leydig cells to shut down their production of the hormone. For this reason, anabolic steroids cause testicular and penile shrinkage. were established for mice, rats, rabbits, and dogs. LD50 means: the dose at which 50 percent of the laboratory animals die. The LD50 values are at more than a gram of extract per kg of body weight.

When the Tongkat Ali-poisoned animals where dissected, several internal organs, such as the liver and the kidneys, were clearly swollen. This is not surprising for any LD50 test, as the above-cited organs are directly involved in the metabolism of ingested substances. More interesting was, in my opinion, that the primary male sexual organs of poisoned laboratory animals also were markedly swollen. This is very unusual.

Testicular and penis size are clearly testosterone-dependent. Every bodybuilder who uses steroids, and thereby shuts down his body’s own testosterone production, can easily observe how the inactivity of his Leydig cells cause testicular and penile shrinkage. And it’s a spur in Leydig cell activity, which, during puberty, causes a boy’s sexual organs to become the size of a man’s. Furthermore, testosterone over-production endocrine disorders during adolescence cause oversized male genitalia.

The assumption that tongkat ali extract causes an increase in penile and testicular volume through Leydig cell stimulation is further supported by observations of trial participants who reported a sense of testicular and penile fullness after tongkat ali use.


1 Wah-Yun Low, PhDa, Hui-Meng Tan, Asian traditional medicine for erectile dysfunction, The Journal of Men’s Health & Gender Volume 4, Issue 3, September 2007, Pages 245-250

2 Siegfried E Drewesa, Jacob Georgeb, Fatima Khana, Recent findings on natural products with erectile-dysfunction activity, Phytochemistry Volume 62, Issue 7, April 2003, Pages 1019-1025

3 Surachai Kotiruma, Shaiful Bahari Ismailb, Nathorn Chaiyakunapruka, Efficacy of Tongkat Ali (Eurycoma longifolia) on erectile function improvement: Systematic review and meta-analysis of randomized controlled trialsEfficacy of Tongkat Ali (Eurycoma longifolia) on erectile function improvement: Systematic review and meta-analysis of randomized controlled trials, Complementary Therapies in Medicine Volume 23, Issue 5, October 2015, Pages 693-698