TRT bloodwork claims on TikTok: what the data actually shows

What did @ecommerce_uk actually say?

The creator told his followers he started testosterone therapy on his own, without a prescription, because his testosterone was sitting at a level of 4 (implied nmol/L). He says his levels are now at "just 24.5," which he describes as "just shy of the top end of the natural" range. He also volunteered that he has been using performance-enhancing substances since age 18 and is now 35, framing this self-directed TRT as a more measured approach than the blast-and-cruise cycles he ran previously. Credit where it is due: he is unusually transparent about the fact that this is unsupervised and unscribed. Most people posting TRT content quietly gloss over that detail.

Does the science back this up?

Partly. A baseline of 4 nmol/L is genuinely low. The European Male Ageing Study (Wu et al., 2010, NEJM) and guidelines from the British Society for Sexual Medicine place the lower threshold for symptomatic hypogonadism at around 8-12 nmol/L depending on symptoms. So his claim that 8 nmol/L is the threshold where TRT can be prescribed is broadly in the right territory for UK practice, though thresholds vary by clinic and clinical picture.

His claim that 24.5 nmol/L is "just shy of the top end of the natural range" is more complicated. The standard NHS reference range runs from roughly 8 to 29-31 nmol/L, depending on the lab. So yes, 24.5 sits in the upper-middle portion of that range, not at the ceiling. Supraphysiological would typically be considered above 30-35 nmol/L. In that narrow sense, his framing is defensible, though calling it "natural" is something he correctly walks back himself.

What did they get wrong (or right)?

He got the numbers roughly right but the framing is slippery. When he says his levels are "by no means natural," he is correct. But describing 24.5 nmol/L as "just shy of the top end of the natural range" implies his levels are essentially normal, when the picture is considerably more complicated for someone with 17 years of prior anabolic steroid use.

Long-term anabolic steroid use suppresses the hypothalamic-pituitary-gonadal axis, sometimes permanently. A reading of 24.5 nmol/L on exogenous testosterone tells you nothing about endogenous production, testicular function, LH, FSH, or SHBG. Rahnema et al. (2014, Fertility and Sterility) documented that up to 20 percent of long-term AAS users develop persistent hypogonadism after stopping. His bloodwork, as he presents it, is an incomplete picture, and he does not acknowledge this.

The bigger problem here is not the numbers. It is the self-prescribing. Unsupervised testosterone therapy carries real cardiovascular risk, particularly erythrocytosis. Corona et al. (2017, Journal of Sexual Medicine) found increased haematocrit is one of the most common adverse effects of TRT, and it requires monitoring that you simply cannot do properly without clinical oversight.

What should you actually know?

If your testosterone comes back at 4 nmol/L and you have symptoms, that is a conversation to have with a doctor, not a green light to self-administer. In the UK, regulated TRT is accessible through NHS endocrinology or private telehealth providers. The monitoring matters as much as the testosterone itself. Haematocrit, lipids, blood pressure, PSA (if applicable), and liver enzymes all need tracking.

For anyone with a history of anabolic steroid use, the clinical picture is even more complex. Recovery of natural testosterone production after prolonged AAS use is not guaranteed, and management requires a hormone panel that goes beyond a single total testosterone figure. Hormones including LH, FSH, SHBG, and oestradiol all inform what is actually happening.

His transparency is genuinely unusual for this content category, and that matters. But transparency about self-prescribing is not the same as safety. The correct response to low testosterone is supervised clinical care, not DIY hormone management presented as harm reduction on TikTok.