Growth Hormone
Tesamorelin
Tesamorelin (growth hormone releasing factor analog)
Belly fat and growth hormone release
Quick answer
A 10 mg vial with 2 mL of water makes 5 mg/mL. A 1 mg dose is 20 units. Once a day at night, usually 12 weeks or more before judging results.
- Mix it
- 10 mg vial + 2 mL water
- Draw
- About 20 units on a U-100 syringe
- How often
- Once a day, at night
- How it is given
- Under the skin, in the belly.
- How long it lasts
- About 30 minutes in the blood, but the growth hormone pulse lasts longer.
- Store it
- Refrigerate after mixing. Use within about 4 weeks.
What it is
Full name: Tesamorelin (growth hormone releasing factor analog). Most people write it as Tesamorelin.
Tesamorelin is a growth hormone releasing peptide with the most research behind it for deep belly fat, the kind that sits around the organs rather than under the skin.
What it is studied for
- Visceral (deep belly) fat
- Growth hormone levels
- Blood lipid markers
These are things researchers study. They are not promised results.
Dosing at a glance
These are the amounts used most often in research. Always start at the low end.
- Vial size
- 10 mg
- Dose range
- 1 mg to 2 mg per dose
- How often
- Once a day, at night
- Cycle length
- 12 weeks or longer
- Mix with
- Bacteriostatic water (also called BAC water or reconstitution solution).
- Storage
- Refrigerate after mixing. Use within about 4 weeks.
Week by week
A common way researchers step the dose up. Stay at each step until it feels easy.
| When | Dose | Notes |
|---|---|---|
| Weeks 1-4 | 1 mg at night | Standard starting dose. |
| Weeks 5-12 | 1-2 mg at night | Hold at the lowest dose that works. |
| Week 12+ | Reassess | Deep belly fat changes are slow. |
This is a reference schedule, not a prescription. Start at the lowest step.
Mixing it
A common setup for Tesamorelin is a 10 mg vial with 2 mL of bacteriostatic water.
That makes 5 mg per mL. A 1 mg dose is about 20 units on a standard insulin syringe.
Bacteriostatic water is all you need here. Acetic acid is only for powders that will not dissolve. See the mixing guide.
Open this in the calculatorWhat to watch for
- Joint aches
- Swelling in hands or feet
- Injection site reaction
Stop and speak to a clinician if anything feels wrong. See the safety page.
Common questions
Is this the same as growth hormone?
No. It tells your body to make its own, in normal pulses.
Why does it target belly fat?
Research is strongest for visceral fat, the deep fat around the organs.
Do joint aches mean I should stop?
Aches usually mean the dose is high. Drop back to 1 mg.