What did @kmartfit actually say?
The creator opens with a flat warning: "Do not take TRT if you want to have kids in the future." Then he immediately walks it back, saying his clinic, Harley-Meds, can help men "optimize their T levels to the full capability without losing your fertility" using "N. Chlamafine or HCG." The pitch ends with a call-to-action to comment "TRT" for more information, which is a lead-generation tactic.
So the core claims are: (1) standard TRT kills fertility, (2) clomiphene or HCG can prevent that, and (3) you can fully maintain testicular function and sperm production while on exogenous testosterone. That last one is where things get complicated.
Does the science back this up?
Partially, yes, but the "full capability" language is overselling it. Exogenous testosterone suppresses the hypothalamic-pituitary-gonadal (HPG) axis, reducing LH and FSH, which tanks intratesticular testosterone and sperm production. That part is well-established.
HCG mimics LH and can partially preserve intratesticular testosterone and testicular volume during TRT. A randomized controlled trial by Coviello et al. (2005, Journal of Clinical Endocrinology and Metabolism) showed that co-administration of HCG with testosterone maintained intratesticular testosterone levels. However, spermatogenesis also requires FSH, which HCG does not replace. Some men on TRT plus HCG still experience significant sperm count reduction.
Clomiphene citrate, which the creator appears to mean by "N. Chlamafine," works differently. It blocks estrogen receptors in the hypothalamus, boosting endogenous LH and FSH. It can raise testosterone in hypogonadal men without shutting down the HPG axis entirely. Krzastek et al. (2019, Journal of Urology) found clomiphene effective for preserving fertility in hypogonadal men, but it works best as an alternative to TRT, not always as a co-treatment with it.
What did they get wrong (or right)?
The creator gets credit for raising a real clinical issue that many men genuinely worry about, and for naming two legitimate tools. HCG and clomiphene are both used in fertility-preserving hormone protocols and are not fringe ideas.
What he gets wrong: the claim that you can keep "your full ball size and your fertility as well" while on TRT is too clean. Testicular volume maintenance with HCG is documented, but fertility outcomes vary considerably by individual. A review by Samplaski et al. (2020, Fertility and Sterility) noted that azoospermia can still occur in some men on testosterone-plus-HCG regimens. Recovery of spermatogenesis after TRT cessation can also take 12 to 24 months or longer.
There is also a regulatory note: HCG availability shifted significantly after the FDA reclassification in 2020, which removed HCG from the category of compounded drugs that could be routinely dispensed. Protocols using it have had to adapt. The video does not mention any of this.
What should you actually know?
If preserving fertility matters to you, this conversation needs to happen with a urologist or reproductive endocrinologist, not a TikTok comment box. The options are real but none of them are guarantees.
- HCG co-administration can help maintain intratesticular testosterone and testicular volume but does not fully replace FSH-driven spermatogenesis.
- Clomiphene is a reasonable first-line option for men with low testosterone who want to preserve fertility, used instead of, or sometimes alongside, exogenous testosterone depending on the case.
- Sperm banking before starting TRT is strongly recommended by reproductive urologists for men who want biological children. It costs relatively little and eliminates uncertainty.
- Recovery of sperm production after stopping TRT is possible for most men but is not guaranteed to be fast or complete, particularly after prolonged use.
The creator is promoting his own clinic throughout this video. That does not make the information wrong, but it does mean you should evaluate the claims with that context in mind. A fertility-preserving TRT protocol is a legitimate medical offering. Whether it delivers "full" fertility protection for every patient is a different, much harder question.