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Protocol Reference
Human trial data

Tesamorelin protocol

Tesamorelin (stabilised GHRH analog). Dosing on this page comes from a published human trial or an approved product label, cited below.

Category
Growth Hormone Axis
Common vials
10 mg
Half-life
~26–38 minutes
Route in the literature
Subcutaneous
Evidence level
Human trial data

How Tesamorelin works

A GHRH analog with a trans-3-hexenoyl group added to the N-terminus, which protects it from degradation by dipeptidyl peptidase-4 and extends its activity relative to unmodified GHRH.

Tesamorelin dosing schedule

From the approved label. Tesamorelin is the strongest-evidenced compound in this category — it holds a current FDA approval, marketed as Egrifta, for reduction of excess visceral abdominal fat in HIV-associated lipodystrophy. That specific indication is what the trials studied.

PhaseAmountFrequencyNotes
Approved use2 mgOnce daily, subcutaneousThe single approved amount for the labelled indication.

Study length: Phase 3 trials ran 26 weeks with a 26-week extension. The label notes benefit is not maintained after discontinuation.

Source for this schedule: Tesamorelin (Egrifta) prescribing information, HIV-associated lipodystrophy indication. This reproduces what was administered in that work. It is reference information about a study, not a recommendation, and the trial population, monitoring and endpoints are part of what made it a protocol.

Reconstitution and measurement

This part is arithmetic and does not depend on the evidence level. Concentration is vial size divided by the bacteriostatic water you add. Draw volume is your target amount divided by that concentration. Units are draw volume times 100, because a U-100 syringe reads 100 units per millilitre. Common vials for Tesamorelin: 10 mg.

  1. Wipe the stoppers of both vials with an alcohol swab and let them dry.
  2. Draw the bacteriostatic water with a sterile syringe and inject it slowly down the inside wall of the peptide vial — never straight onto the powder.
  3. Swirl gently until the solution is clear. Do not shake; foaming and agitation damage peptides.
  4. Label the vial with the date and concentration, and refrigerate at 2–8 °C protected from light.

Worked example at the calculator defaults: 10 mg + 1 mL of bacteriostatic water = 10 mg/mL, so on a U-100 insulin syringe 1 unit = 100 mcg of Tesamorelin. Change either input and the calculator redoes this for you.

Open the Tesamorelin calculator → Unit converter

Storage and stability

Dry powder
Cold, dark and dry. Lyophilized peptide is the stable form — keep it that way until you intend to use it.
After reconstitution
Refrigerate at 2–8 °C, protect from light, and plan around a limited window. Do not freeze a reconstituted vial — freeze-thaw damages peptides.
Mixing
Run bacteriostatic water down the inside wall of the vial rather than onto the powder, then swirl. Never shake.
Inspect before use
A clear solution is expected. Cloudiness or particles mean discard, not use.

Full storage guide → · Cloudy solution?

Supplies math

Whatever amounts your research uses, the planning arithmetic is the same. The calculator runs all of this per compound.

Vials
Doses per vial = vial size in mg divided by your per-dose amount in mg. A 10 mg vial at 500 mcg per dose is 20 doses; scale for your own numbers.
Syringes
One sterile U-100 insulin syringe per injection, plus roughly 10% spares for bent tips and mis-draws. Daily protocols run 30 or 31 per month.
Bacteriostatic water
1 to 3 mL per vial reconstituted. A single 10 mL bottle covers 3 to 10 vials, so one bottle usually outlasts several vials.
Alcohol swabs
Two per injection: one for the vial stopper, one for the site. A 100-count box covers about 7 weeks of daily work.

Subcutaneous technique and practical notes

General best practice from clinical injection guidance — the same fundamentals nurses are taught, none of it specific to any compound.

Fresh sterile syringe, every time
Reusing needles dulls the tip, hurts more, and is the easiest contamination route. Dispose of used syringes in a sharps container, not the bin.
Rotate sites
Abdomen (5 cm clear of the navel), thighs, upper arms. Rotating systematically prevents localised irritation and lipohypertrophy.
Slow and steady
Pinch a skinfold, insert at 45–90°, inject slowly, and wait a few seconds before withdrawing. Subcutaneous injections are not aspirated.
Write it down
Log the date, amount and site. A record is the only way to keep any research protocol consistent — and the first thing to review if anything looks off.

Reported effects

  • Trial reporting notes injection-site reactions, arthralgia and peripheral oedema.
  • Because it raises IGF-1, the label carries monitoring guidance and contraindications including active malignancy.
  • Visceral fat returned toward baseline after stopping in the extension study.

Sourcing Tesamorelin

Whatever you are working with, the documentation matters more than the price. Ask for a batch certificate of analysis whose lot number matches the vial you actually receive — a COA for a different batch tells you nothing about yours.

Tesamorelin at Summit Research Supply → Grade a COA first

Summit is the supplier we feature and an affiliate link. Our COA checklist applies the same way to any vendor.

Sources and further reading

For laboratory research use only. This page documents what the published literature reports about Tesamorelin. It is not a recommendation, not a treatment plan, and not medical advice. Compounds referenced are sold strictly as research chemicals and are not for human or veterinary use. Some supplier links are affiliate links and may earn us a commission. This never affects tier placement or review conclusions.
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