Peptide therapy · Visceral fat and body composition

Tesamorelin

Tesamorelin is a growth hormone releasing hormone analogue and the only peptide on our menu that is itself an FDA-approved medication. It was approved to shrink the deep abdominal fat that builds up in certain HIV patients, and in trials it reduced that visceral fat by around 15 to 18 percent over six months. Men without HIV use it off-label for the same reason, with the understanding that the fat comes back if they stop and that it needs lab monitoring throughout.

FDA-approved medicationDaily injectionTargets deep belly fatIGF-1 and glucose monitored

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Last updated October 7, 2026. Written and maintained by the Ultimate Male clinical team; regulatory lines are re-checked when the FDA acts.

What tesamorelin is

Tesamorelin is a stabilised version of growth hormone releasing hormone, the signal your hypothalamus sends to the pituitary to release growth hormone in pulses. Natural GHRH breaks down in minutes; tesamorelin carries a small chemical modification that lets it survive long enough to produce a solid pulse. It was developed by Theratechnologies, approved by the FDA in 2010 under the brand name Egrifta for reducing excess abdominal fat in HIV patients with lipodystrophy, and reformulated since (Egrifta SV, and in 2025 Egrifta WR). Compounding pharmacies also supply tesamorelin acetate for off-label use.

How tesamorelin reduces visceral fat

Growth hormone is strongly lipolytic, meaning it drives fat cells to release stored fat, and visceral fat, the kind packed around the organs, is especially responsive. By restoring a growth hormone pulse, tesamorelin raises IGF-1 and increases fat breakdown preferentially in the abdomen. Two things follow from the mechanism:

It works through your own pituitary, so growth hormone stays within physiological pulses and the normal feedback loop remains intact, which is a safety advantage over injecting growth hormone itself
It is specific to visceral fat; subcutaneous fat under the skin changes much less, which is why the tape measure moves more than the scale
The effect lasts only while you take it; trials that stopped the drug saw visceral fat return within months

What the research shows

Tesamorelin has the best human evidence of anything on our peptide menu. Two phase 3 trials in HIV patients showed visceral adipose tissue fell by roughly 15 to 18 percent over 26 weeks versus a small increase on placebo, with improvements in triglycerides and waist circumference, and the effect was maintained to 52 weeks in those who continued. A separate trial in otherwise healthy older adults found improved scores on some tests of memory and executive function after 20 weeks, which is why cognition is sometimes mentioned. A study in non-HIV adults with abdominal obesity also showed visceral fat reduction. What has not been shown is a benefit for men who are already lean, or any effect on subcutaneous fat worth paying for.

How we use tesamorelin at Ultimate Male

Tesamorelin needs more monitoring than the recovery peptides, so the work-up is thorough:

Baseline labs: IGF-1, fasting glucose and HbA1c, lipids, testosterone and a general panel; the consultation screens for cancer history and pituitary conditions
Dose: 1 to 2 mg by subcutaneous injection once daily, usually at bedtime to line up with your natural growth hormone pulse
Repeat IGF-1 and glucose at six to eight weeks, then every three months; the dose is adjusted to keep IGF-1 in the upper-normal range, never above it
Progress is measured with waist circumference and, where available, a body-composition scan rather than the scale
Frequently paired with TRT in men who have both low testosterone and central fat, and with a medical weight-loss plan

Where the FDA stands on tesamorelin

Tesamorelin is an FDA-approved drug, which places it in a different category from the compounded peptides on this site. The approval covers reduction of excess abdominal fat in adults with HIV and lipodystrophy. Using it for body composition in men without HIV is off-label: legal when a licensed provider judges it appropriate, but outside the approved indication, and your provider says so at the consultation. Compounded tesamorelin is supplied by 503A pharmacies; as of October 7, 2026 it remains available, and because an approved version exists, its compounding status is more settled than that of BPC-157 or TB-500.

Side effects and who should skip it

The most common effects are injection-site redness or itching, joint aches, swelling in the hands or feet from fluid retention, and tingling in the fingers; these are growth hormone effects and usually ease with a lower dose. Tesamorelin can raise blood sugar, which is why we check glucose and HbA1c and are cautious in men with prediabetes. It is not recommended for men with active cancer, a pituitary tumour or injury, or uncontrolled diabetes, and it is contraindicated in pregnancy, which is not relevant to our patients but is part of the label.

What men use Tesamorelin for

Reduces deep visceral fat, the kind linked to heart and metabolic risk

Waist and body shape change that diet alone was not moving

Supports lean mass while fat comes off

Lower triglycerides in trials

Works through your own growth hormone pulse, not synthetic HGH

The only peptide on our menu with phase 3 human trials behind it

Is Tesamorelin for me?

It may be a good fit if any of these sound like you. Labs and a consultation decide.

Men with a hard, protruding belly who are otherwise not overweight, the classic visceral-fat pattern
Men on TRT whose energy and strength improved but whose midsection did not
Men with high triglycerides and waist circumference over 40 inches who want a medical option alongside diet and training
Men in their forties and fifties with declining IGF-1 on labs and a growing waist
Men who have ruled out HGH because of the risks and want the physiological alternative

Who should not use it

Active cancer or a cancer history under five years, because growth hormone and IGF-1 are growth signals
Pituitary tumour, surgery or radiation
Uncontrolled diabetes or rising HbA1c
Men who are already lean and want a cosmetic edge: the trials show no meaningful effect there

How it starts

A free ten-minute phone call, then labs and a one-on-one consultation with a provider in San Gabriel or Downey. Tesamorelin is recommended only if your results and goals point to it.

Other peptides

Often compared with Tesamorelin

Every peptide we recommend has its own page with the same honest format. See the full peptide menu

A man with grey hair sleeping soundly on his side in a white bed, wearing a blue T-shirt

SermorelinSleep, recovery and lean mass

A smiling man in his fifties in a red hoodie and headphones standing in a sunny park after a workout

NAD+Energy, focus and healthy aging

A bearded man in his fifties setting up to deadlift a barbell in a dark gym

Wolverine Stack (BPC-157 + TB-500)Full-body recovery stack

How it works

Three steps. About a week.

Nothing is recommended blind. Every plan starts with labs and a real conversation, and most men are on a plan within a week of their first call.

Start with the free assessment

Free phone call

Tell us what is going on. Ten minutes, no pressure. We tell you honestly whether we can help.

Labs and consult

Same-day blood draw and a one-on-one with your provider in a private room. Results in 24 to 48 hours.

Your plan

Built around your numbers and your goals. Follow-ups and lab monitoring included.

Questions

Tesamorelin questions.

What men ask us about Tesamorelin before they start.

Still unsure? Take the free assessment

Is tesamorelin the same as HGH?

No. HGH is growth hormone itself. Tesamorelin tells your pituitary to release your own growth hormone in its normal pulses, so levels stay inside what your body can regulate. That is why providers favour it over HGH for body composition in otherwise healthy men.

How much fat will I lose?

In the trials, visceral fat dropped about 15 to 18 percent over six months. That is deep fat around the organs, measured by CT scan; the scale often moves less than the waistband does. Results in men without HIV are reported as similar but have been studied less.

What happens when I stop?

Visceral fat gradually returns, usually over several months. Tesamorelin is a maintenance therapy, not a course. Some men use it for six to twelve months while they fix diet and training, then taper and hold the result with lifestyle.

Does it affect blood sugar?

It can raise it slightly, which is a known growth hormone effect. We check fasting glucose and HbA1c before starting and at follow-ups, and we are careful with men who are already prediabetic.

Is the compounded version the same as Egrifta?

Compounded tesamorelin acetate is the same peptide made by a 503A pharmacy for an individual patient rather than the branded, FDA-approved product. It is less expensive. Your provider will tell you which is being supplied.

Can I combine tesamorelin with sermorelin?

Both are growth hormone releasing hormone analogues, so they are not usually stacked. Tesamorelin is the stronger choice when visceral fat is the goal; sermorelin suits sleep and recovery goals at a lower cost. Your provider picks one.

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