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Growth hormone & secretagoguesMetabolic & weight management

Tesamorelin

Growth-hormone and belly-fat peptide

Also known as Tesa, Egrifta

Quick reference
Evidence grade
AApproved, phase 3 dataScale
Half-life
About 26 to 38 minutes
Schedule
Once daily, subcutaneous
Maintenance amount
2.00 mg
Vial sizes sold
5 mg, 10 mg
Cost per dose
$17.80

Where a value is not established in people, this table says so rather than filling the box.

Tesamorelin is a stabilized form of growth hormone releasing hormone, or GHRH. It stands apart from most peptides in this space because a prescription version has been through real clinical trials, so its effects in people are better documented than usual.

How Tesamorelin works

Rather than adding growth hormone to the body, tesamorelin nudges the pituitary gland to release more of its own. It binds to GHRH receptors on the gland, which raises growth hormone in the natural on and off pulses the body already uses. That in turn lifts IGF-1 and encourages the body to burn fat, with the strongest effect on the deep abdominal fat that sits around the organs. Because the signal still runs through the body's own feedback loop, output stays self limiting in a way that injecting growth hormone directly is not.

Benefits and side effects in the research

Human clinical-trial data; FDA-approved as Egrifta for HIV-associated lipodystrophy.

Potential benefits
  • Studied for reduction of excess visceral abdominal fat in HIV lipodystrophy.
  • May lower triglycerides and improve some lipid measures.
  • Raises GH and IGF-1 by mimicking growth-hormone-releasing hormone.
  • Studied for modest effects on liver fat and cognition in small trials.
Reported side effects
  • Injection-site reactions such as redness, itching and pain.
  • Joint pain, swelling and fluid retention from GH elevation.
  • Can raise blood glucose and reduce insulin sensitivity.
  • Visceral fat returns after stopping, and use is not advised in active cancer.

A summary of the research, not medical advice. Individual benefits and risks vary, and for some of these compounds the human evidence is still early.

Tesamorelin has real controlled human trial data, mainly in visceral fat reduction, with published studies generally running 26 weeks. Reports describe injection-site reactions early, with measurable changes in visceral fat and IGF-1 building over 12 to 26 weeks.

Read the full timeline →

Drawn from published trial data and how the research community commonly describes this stretch. Not a fixed schedule and not medical advice.

Sample dosing schedule

Goal of the protocol. Target stubborn visceral belly fat by raising natural growth-hormone release.

Once daily, subcutaneous. For research reference only, not medical advice.

PhaseAmount
Ongoing2 mg daily

The registrational trials used a fixed 2 mg daily amount, with no titration.

Reconstitution reference
Pick a vial size
Model this vial in the calculator →
What you'll need

A rough shopping estimate at the maintenance amount. Your real needs shift with your dose and titration.

Item8-week plan12-week plan16-week plan
Peptide vials (10 mg)121723
Insulin syringes (U-100)5684112
Bacteriostatic water (10 mL)345
Alcohol swabs (100-count box)122
What it costs to run

What a course of Tesamorelin actually costs, worked from list price and the amount in the schedule above, plus the whole vials a 12-week run would take.

SupplierVialPricePer mgPer dose12 weeksIndependent test
Quartz Peptides10 mg$89$8.90$17.80$1,513 (17 vials)None on file

One supplier listed so far for this compound.

List prices, checked September 4, 2026. Sale pricing is ignored on purpose so the table does not swing week to week. Verify before ordering.

Suppliers are listed alphabetically. We do not rank them by price, because the cheapest vial and the one worth buying are rarely the same thing. The column that matters is the last one, and today most of it reads "none on file", including for Quartz Peptides, which is owned by this site’s editor. See the disclosure and the COA guide.

Storage

Lyophilized: Keep the sealed powder frozen at about -20 °C, dry and out of light, where it stays stable for a long time.
Reconstituted: Once mixed, refrigerate at 2 to 8 °C, use within a few weeks and never let it freeze and thaw.
Let a cold vial reach room temperature before you open it, so it takes on less condensation.

Common questions
How strong is the evidence for Tesamorelin?

We grade it A on a four-point scale. Phase 3 data. Approved as Egrifta for HIV-associated lipodystrophy.

What is the half-life of Tesamorelin?

About 26 to 38 minutes. That is the figure the reported dosing frequency follows from.

What amount of Tesamorelin is used in the research?

Ongoing: 2 mg daily. The registrational trials used a fixed 2 mg daily amount, with no titration.

How much does Tesamorelin cost?

A 10 mg vial lists at $89 from Quartz Peptides, which works out to $8.90 per mg and about $17.80 per dose at the amount used in research. Prices checked September 4, 2026. Price is not a quality signal, so check the certificate of analysis before ordering from anyone.

How is Tesamorelin stored once reconstituted?

Once mixed, refrigerate at 2 to 8 °C, use within a few weeks and never let it freeze and thaw.

Reference studies
  1. Falutz J, et al. Metabolic effects of a growth hormone-releasing factor in patients with HIV. N Engl J Med. 2007;357:2359-2370.
  2. Tesamorelin. LiverTox: Clinical and Research Information on Drug-Induced Liver Injury. NIH/NIDDK.
  3. Egrifta (tesamorelin), FDA prescribing information.
  4. Falutz J, et al. Tesamorelin, a GHRH analogue, in patients with HIV and abdominal fat accumulation. N Engl J Med. 2007;357:2359 to 2370.
Important. Everything on this page is for research and educational use. It is not medical advice, a diagnosis or a treatment plan. The compound is sold for research only and is not for human consumption.
Structure
2-D chemical structure of Tesamorelin
2-D structure of Tesamorelin, generated from its molecular data.