Tesamorelin and Ipamorelin Reconstitution: How to Mix the Blend Correctly

To reconstitute tesamorelin and ipamorelin, slowly inject bacteriostatic water into the vial while aiming the stream at the glass wall instead of the powder, then swirl gently until the solution is clear. Most vials take 1–3 mL of bacteriostatic water, and that volume sets the concentration and the number of units you draw on an insulin syringe. Reconstituted vials should be kept refrigerated at 36–46°F (2–8°C) and are generally used within about 30 days.

What Tesamorelin and Ipamorelin Are

Tesamorelin is a synthetic growth hormone–releasing hormone (GHRH) analog. It is FDA-approved under the brand name Egrifta for HIV-associated lipodystrophy, but the vials sold to laboratories are usually labeled "for research use only." Ipamorelin is a selective ghrelin receptor agonist, and it is not FDA-approved for human use in any form.

Because the two peptides act on different receptors, some research protocols combine them. A blend vial simply contains both powders in one glass container, which changes the mixing math but not the basic technique.

Researchers comparing receptor selectivity often sort through cjc-1295 ipamorelin vs tesamorelin data, since GHRH analogs and ghrelin mimetics trigger different signaling pathways.

Supplies You Need Before You Start

• Bacteriostatic water (0.9% benzyl alcohol) in a multi-dose vial
• Alcohol swabs and sterile gauze
• Mixing syringes with a 20–25 gauge needle
• Insulin syringes (U-100) for measuring units
• A sharps container, gloves, and a clean, flat surface
• A refrigerator and a permanent marker for labeling

Bacteriostatic water is preferred over plain sterile water because the benzyl alcohol slows microbial growth in a vial that gets punctured repeatedly. Sterile water is normally reserved for single-use preparations.

Step-by-Step Reconstitution

1. Wipe the work surface, then swab the tops of both the peptide vial and the bacteriostatic water vial with alcohol and let them dry.
2. Draw the desired volume of bacteriostatic water into the mixing syringe, removing any large air bubbles.
3. Insert the needle into the peptide vial at a slight angle so the tip touches the inside wall.
4. Push the plunger slowly so the water runs down the glass rather than blasting into the powder.
5. Withdraw the needle and swirl or roll the vial between your palms until the powder fully dissolves.
6. Never shake the vial; shaking creates foam and can shear the peptide chains.
7. Let the vial rest for a few minutes, then check that the solution is clear and particle-free.
8. Label the vial with the peptide name, water volume, concentration, and the date you mixed it.

The same technique used for cjc-1295/ipamorelin reconstitution applies here: slow, gentle, and never shaken.

Reconstitution Ratios and Syringe Math

Divide the total milligrams in the vial by the milliliters of water you add to get the concentration in mg/mL. A vial labeled tesamorelin/ipamorelin 12 2mg reconstitution follows the same math as any other blend.

Peptide per vial	BAC water added	Concentration	Volume for 100 mcg	Units on U-100 syringe
2 mg	1 mL	2 mg/mL	0.05 mL	5 units
2 mg	2 mL	1 mg/mL	0.10 mL	10 units
5 mg	2.5 mL	2 mg/mL	0.05 mL	5 units
10 mg	2 mL	5 mg/mL	0.02 mL	2 units
10 mg	5 mL	2 mg/mL	0.05 mL	5 units

On a U-100 insulin syringe, 0.01 mL equals 1 unit, so 0.05 mL reads as 5 units. Diluting a blend with more water does not change the ratio of the two peptides, because the manufacturer already fixed that ratio in the powder.

Total peptide in blend vial	BAC water added	Approximate total concentration
12 mg	2 mL	6 mg/mL
12 mg	3 mL	4 mg/mL
12 mg	4 mL	3 mg/mL
12 mg	6 mL	2 mg/mL

Storage, Stability, and Handling

• Store reconstituted vials in the refrigerator at 36–46°F (2–8°C), away from the freezer compartment.
• Keep vials out of direct light; amber glass or a box works well.
• Do not freeze a reconstituted solution, since ice crystals can degrade the peptide.
• Avoid repeated temperature swings by leaving the vial in one spot.
• Swab the rubber stopper with alcohol before every draw.
• Discard any vial that turns cloudy, changes color, or shows visible particles.

Lyophilized powder is far more stable than a mixed solution, so only reconstitute what you plan to use in the near term.

Safety, Legal, and Research Considerations

Tesamorelin is approved by the FDA only as Egrifta for a specific clinical indication, and ipamorelin has no approved human use in the United States. Research peptides sold online are labeled "not for human consumption" and are not regulated the way prescription drugs are.

Anyone weighing side-by-side notes on tesamorelin vs sermorelin vs ipamorelin should remember that approval status and evidence quality differ sharply between these compounds. A cjc 1295 ipamorelin tesamorelin stack raises the same unanswered questions, because no large controlled trials have tested the combination.

Always discuss any hormone-related compound with a licensed healthcare professional before use. Purity matters too: ask vendors for third-party certificates of analysis that list the peptide content and any residual solvents.

Common Reconstitution Mistakes

• Shaking the vial instead of swirling it
• Squirting water directly onto the powder
• Using sterile water for a vial that will be punctured many times
• Miscalculating units on the syringe
• Leaving the mixed vial at room temperature for hours
• Reusing needles or skipping the alcohol swab

Keeping a written log of water volume, concentration, and mixing date removes most of the guesswork from future draws.

COMMON QUESTIONS

Frequently Asked Questions

How much bacteriostatic water do I add to a tesamorelin and ipamorelin vial?

There is no single required volume, but 1–3 mL per vial is the common range. Adding 1 mL to a 2 mg vial gives 2 mg/mL, while adding 3 mL to a 12 mg blend gives roughly 4 mg/mL. Choose the volume that makes your needed dose easy to measure on a U-100 syringe.

How long does reconstituted tesamorelin and ipamorelin last?

Most researchers treat a reconstituted vial as usable for about 30 days when stored refrigerated at 36–46°F (2–8°C). Bacteriostatic water helps slow microbial growth, but the peptide itself still slowly degrades. Discard the vial sooner if the solution becomes cloudy or shows particles.

Can you shake a peptide vial to mix it faster?

No. Shaking creates foam and can damage the peptide structure. Swirl the vial gently or roll it between your palms until the powder dissolves completely, which usually takes only a minute or two.