Tesamorelin reconstitution calculator
Opens on a 10 mg vial, 2 mL of bacteriostatic water and a 500 mcg dose, amounts recorded for Tesamorelin in the compound library. Change any field and the draw updates.
Original calculator
The classic all-in-one form
Every input on one card, the way the original site worked.
Typical vial strength and dose filled in; recorded examples appear as one-tap presets.
- Draw 10 units for 500 mcg doses of Tesamorelin.
- Concentration 5 mg/mL (10 mg in 2 mL). Each vial holds 20 doses of 0.1 mL.
For research and educational use. This calculator does not provide medical advice.
How the numbers work for Tesamorelin
A 10 mg vial of Tesamorelin with 2 mL of bacteriostatic water is 10 / 2 = 5 mg/mL. A 500 mcg dose (0.5 mg) is 0.5 / 5 = 0.1 mL, which is 10 units on a U-100 syringe, or the same number of clicks on a pen. With 3 mL of water instead, the concentration is 3.33 mg/mL and the same dose is 15 units. At that dose the vial holds 20 doses.
The formulas are the same for every compound: concentration is the vial amount divided by the water, the draw is the dose divided by the concentration, and a U-100 unit is 0.01 mL. They are written out on the methodology page.
Tesamorelin units at a glance
Syringe units for the amounts recorded for Tesamorelin, from a 10 mg vial, across the water volumes people most often use. These are recorded examples used for the arithmetic, not recommendations; a draw under 6 units is hard to measure repeatably and more water fixes that.
| Dose | 1 mL water10 mg/mL | 2 mL water5 mg/mL | 3 mL water3.33 mg/mL |
|---|---|---|---|
| 500 mcg | 5 units0.05 mL | 10 units0.1 mL | 15 units0.15 mL |
| 2 mg | 20 units0.2 mL | 40 units0.4 mL | 60 units0.6 mL |
Where the amounts come from
The doses above are recorded amounts from the Tesamorelin entry in the compound library, which lists the sources behind them, labels each as clinical, preclinical or community-reported, and states what the evidence can and cannot support. The vial strength is the one most often listed by suppliers. Nothing on this page is medical advice.
Common questions about Tesamorelin
- Is Tesamorelin an FDA-approved medicine?
- Tesamorelin is the active ingredient of Egrifta, approved by the FDA in 2010 to reduce excess abdominal fat in adults with HIV and lipodystrophy; a once-weekly form, Egrifta WR, followed in 2025. Any other use is off label.
- How much bacteriostatic water do I add to a 10 mg vial of Tesamorelin?
- There is no single right amount: the water sets the concentration and the size of the draw, not the dose. This page opens on 2 mL, which makes 5 mg/mL and puts a 500 mcg dose at 10 units on a U-100 syringe. With 1 mL the same dose is 5 units; with 3 mL it is 15 units. More water gives a larger, easier-to-read draw, as long as the vial can hold it.
- How many units is 500 mcg of Tesamorelin?
- At 5 mg/mL (10 mg in 2 mL of water), 500 mcg is 0.1 mL, which is 10 units on a U-100 insulin syringe or 10 clicks on a peptide pen. At any other concentration the number changes; the units table on this page gives the other common water volumes.
- How many doses are in a 10 mg vial of Tesamorelin?
- At 500 mcg per dose, a 10 mg vial holds 20 doses. The water volume changes the size of each draw, not the number of doses in the vial.
- Where do the Tesamorelin amounts on this page come from?
- They are amounts recorded for Tesamorelin in the compound library (https://peptidescalculator.com/compound-library/tesamorelin), which lists the sources behind them and labels each as clinical, preclinical or community-reported. They are shown for the arithmetic, not as recommendations, and the vial strength is the one suppliers list most often. Nothing on this page is medical advice.