HGH vs Tesamorelin

The Dose Guy’s verdict

Oct 27, 2026
8 sources

Pick by where the fat is. For recomp, recovery, and the look people buy the GH axis for, the hormone itself is the stronger, surer tool, and tesamorelin’s case for that job is borrowed from its mechanism. If deep visceral fat is the specific problem, tesamorelin is the one trialed for exactly that, and it keeps your own pituitary doing the work. Either way, a CJC-1295 and ipamorelin stack is the cheaper first stop; you graduate from there.

Which would I take?HGH, unless the target is belly fat.

How they differ

Start with who makes the growth hormone. HGH is the hormone itself: you inject it and your blood level goes up, whatever your pituitary thinks about it. Tesamorelin is a GHRH analog, a stabilized copy of the signal that tells your pituitary to release its own GH, so the pulse is still yours and your body’s brakes still work. That is why HGH hits harder and scales with the dose, and why it turns your own production down for as long as you run it. Tesamorelin cannot push past what your pituitary will release, which caps the upside and the sides together.

That decides who each one is for. For general recomp and fat loss on a lean frame, HGH is what moves the needle. For visceral fat, the kind packed around the organs that your waistline shows and a pinch test misses, tesamorelin has the trials and HGH has general fat-loss data. If you searched this for weight loss, neither is a scale drug: both trade fat for lean and leave the number roughly where it was. A GLP-1 is the weight-loss tool.

Day to day they look alike: one small daily sub-q pin on an empty stomach. What differs is the leash. HGH is dosed to effect and its sides climb with the dose; tesamorelin is one flat dose with nothing to tune. Both stop working when you stop, and tesamorelin’s belly fat came back fast in its trial. In a tested sport, both are banned.

What the research shows

There is no trial of one against the other, and the two programs studied different people: HGH in healthy adults, tesamorelin in people with HIV and belly fat. Read each on its own terms:

No head-to-head trial of HGH against tesamorelin exists.as of Aug 2026

In healthy older adults, GH cut fat mass by 2.1 kg and added 2.1 kg of lean mass versus control, and total weight moved 0.1 kg.Annals 2007 · systematic review

One month of supraphysiological GH in healthy active adults raised fat-free mass by 5.3% and cut body fat by 6.6%, and the fat-free gain was extracellular water, not intracellular.Clin Endocrinol 2005 · RCT · n=30

Tesamorelin produced a 15.4% treatment effect on visceral fat at 26 weeks versus placebo, and people who continued to 52 weeks held a 17.5% reduction from baseline.JCEM 2010 · pooled phase 3 · n=806

When participants switched from tesamorelin to placebo, the visceral fat improvements were rapidly lost.JAIDS 2010 · phase 3 · n=404

Tesamorelin owns the one target it was trialed on, for as long as the pins continue.

How people run them

HGH is dosed to effect. Start at 1 to 2 IU in the morning, fasted, and hold it for a couple of months before you judge it; most people doing recomp land between 2 and 4 IU. Raise only when progress stalls and the sides are quiet. Puffy hands and tingling fingers mean back off, and holding a dose that works is winning. Tesamorelin is simpler: 2 mg a day, the trial dose, flat, for six months or more. Pin it fasted, in the morning or before bed, because food blunts the pulse.

Switching from tesamorelin to HGH, stop one and start the other at 1 to 2 IU the next morning. No washout, nothing to taper. Going from HGH to tesamorelin, start the next morning too, and expect less: tesamorelin only works through your own pituitary, and its trials judged it at 26 weeks, so judge it on months, not on the first few weeks.

Do not stack them. Tesamorelin asks your pituitary for a pulse the HGH already covers, so you pay more water and a second hit to your glucose for nothing extra. Pick one. If neither fits the budget, the CJC-1295 and ipamorelin stack does the general GH-axis job for less, and it is where both compound pages send you first. On either, get IGF-I and fasting glucose checked before you start and every few months.

HGH2–4 IU/dayMorning, fasted. Start at 1 to 2 and hold for months; the sides scale faster than the gains.

Tesamorelin2 mg/dayThe trial dose, flat. Morning or pre-bed, on an empty stomach.

Tesa to HGH1–2 IU, next morningNo washout; start at the floor, not where you hope to end up.

HGH to tesa2 mg, next morningIts trials read it at 26 weeks; judge it on months, not weeks.

Either oneIGF-I, glucoseIGF-I confirms it is working; glucose confirms the cost.

Side effects, side by side

Same GH-axis sides, with HGH carrying the heavier share:

commonJoint aches, and tingling or numbness in the hands, the carpal-tunnel signal. On both, heavier and earlier on HGH at higher doses.

commonWater retention, puffy hands and face, mostly an HGH problem. It fades when you lower the dose.

commonInjection-site redness and irritation on tesamorelin, localized and not serious in its trials.

monitorFasting glucose. HGH worsens insulin sensitivity, more with dose and time; tesamorelin bumped glucose early in its trials and then settled. Check yours on either, and take a rising number on HGH seriously.

monitorGynecomastia showed up in longer HGH trials in older adults. Watch for it on long runs at higher doses.