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Blog  ›  How to Reconstitute AOD-9604: A Simple Step-by-Step Guide

How to Reconstitute AOD-9604: A Simple Step-by-Step Guide

Jun 11, 2026 4 min Metabolic
TL;DR
Reconstituting AOD-9604 means dissolving a dry powder in bacteriostatic water so it becomes an injectable solution ready to measure. The key steps are warming the vial, slowly adding water, swirling gently, and storing it cold. Always use a dosage calculator to work out your exact volumes before you draw anything up.

What Is AOD-9604 and Why Does It Come as a Powder?

AOD-9604 is a synthetic peptide — a short chain of amino acids — that was studied in clinical trials for its potential role in metabolic health.[1] Researchers have also explored its influence on tissue signalling pathways relevant to recovery.[2] Like most peptides, it is supplied as a freeze-dried (lyophilised) powder. That keeps it stable on the shelf. Before it can be used in a research setting, you have to dissolve it in a liquid. That process is called reconstitution.

Peptides are delicate molecules. A rough or careless reconstitution can damage the compound or make dosing inaccurate. The good news? The method is straightforward once you know it.

What You Will Need

  • AOD-9604 vial — your freeze-dried powder
  • Bacteriostatic water (BAC water) — sterile water with 0.9% benzyl alcohol, which prevents bacterial growth
  • Insulin syringe — small and precise, ideal for drawing up exact volumes
  • Alcohol swabs — to clean rubber stoppers before every puncture
  • A cool, dark storage space — your refrigerator

Step 1 — Warm the Vial Gently

Take your AOD-9604 vial out of the refrigerator and let it sit at room temperature for about 10 to 15 minutes. Why? A cold vial can cause thermal shock when warmer liquid hits it. Letting it warm up slightly means the powder and water will mix more smoothly. Never use heat — just let it rest on the counter.

Step 2 — Swab Everything

Use a fresh alcohol swab on the rubber stopper of your peptide vial. Do the same for your BAC water vial. Let both stoppers air-dry for a few seconds. This is a simple but important hygiene step.

Step 3 — Draw Up Your BAC Water

Decide how much BAC water you want to add. A common starting point for research vials is 1 to 2 mL, but the right amount depends on your vial size and the doses you plan to measure. Insert your syringe into the BAC water vial and draw up your chosen volume slowly and steadily.

Step 4 — Add Water Slowly Down the Side

This is the most important step. Insert the needle into your AOD-9604 vial at a slight angle so the tip points toward the inner glass wall — not directly at the powder. Push the plunger very slowly. Let the water trickle down the side of the vial. Do not squirt it straight onto the powder cake. Blasting the powder with fast-moving liquid can break apart the peptide structure. Slow and steady wins here.

Step 5 — Swirl, Never Shake

Once all the water is in, gently roll and swirl the vial between your palms. You are looking for a clear, colourless solution with no visible particles. This usually takes 20 to 60 seconds. Never shake the vial. Shaking creates tiny air bubbles and can degrade the peptide. Swirling is all you need.

Step 6 — Use the Calculator to Find Your Dose Volume

Here is where many people get tripped up. The peptide dose (measured in micrograms or milligrams) is not the same as the volume you draw into a syringe (measured in millilitres or units on an insulin syringe). You need to do a quick calculation. Our calculator does the maths for you instantly — just enter the vial size, the amount of BAC water you added, and your target dose. It tells you exactly how many units to draw. This step protects accuracy and removes guesswork.

Step 7 — Store It Correctly

Once reconstituted, place the vial in your refrigerator (around 2–8 °C). Keep it upright and away from light. A reconstituted peptide vial is generally considered stable for 4 to 6 weeks when stored cold, though this can vary by product. Label the vial with the date you mixed it so you always know how old it is.

A Few Research Context Notes

AOD-9604 has been studied in phase II clinical trials and was noted not to interfere with growth hormone immunoassay tests used in sports drug testing.[3] Researchers in sports medicine note that while animal models show interesting metabolic and tissue outcomes, rigorous human safety data for many peptides including AOD-9604 remain limited, and it is not currently approved by regulators as a drug.[4] Peptides as a class appear in analytical and doping research literature due to their pharmacological complexity.[5] AOD-9604 has also appeared in summaries of clinical trial drug candidates.[6] All information here is for educational and research purposes only — it is not medical advice.

Sources

  1. AOD-9604 Metabolic. — Current opinion in investigational drugs (London, England : 2000), 2004. PMID 15134286.
  2. Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future Directions. — Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews, 2026. PMID 41490200.
  3. AOD-9604 does not influence the WADA hGH isoform immunoassay. — Drug testing and analysis, 2013. PMID 24124033.
  4. Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance. — Sports medicine (Auckland, N.Z.), 2026. PMID 41966639.
  5. Human sports drug testing by mass spectrometry. — Mass spectrometry reviews, 2017. PMID 26213263.
  6. Gateways to clinical trials. — Methods and findings in experimental and clinical pharmacology, 2005. PMID 15834452.
See the dosage chart — AOD-9604
A growth-hormone fragment studied for lipolysis without glycemic effects.
AOD-9604

FAQ

What is bacteriostatic water and why do I use it instead of plain water?
Bacteriostatic water contains 0.9% benzyl alcohol, which slows bacterial growth inside the vial. Plain sterile water has no preservative, so once punctured it can become contaminated quickly. BAC water lets you re-enter the vial multiple times over several weeks without the same contamination risk, making it the standard choice for reconstituting research peptides.
How much BAC water should I add to my AOD-9604 vial?
It depends on your vial size and the doses you plan to research. Common amounts range from 1 mL to 2 mL. Adding more water makes each unit on the syringe represent a smaller dose, which can make measuring small amounts easier. Use the dosage calculator on this site to work out the exact volume that suits your vial and target dose.
Why should I never shake a reconstituted peptide vial?
Shaking creates aggressive mechanical force and air bubbles. Peptides are chains of amino acids held together by relatively delicate bonds. Vigorous shaking can disrupt those bonds and denature the compound — meaning it loses its intended structure. Gentle swirling achieves full dissolution without that risk, so it is always the recommended method.
How long does a reconstituted AOD-9604 vial stay usable?
When stored in the refrigerator at 2–8 °C and kept away from light, a reconstituted vial is typically considered stable for around 4 to 6 weeks. Always note the date of reconstitution on your label. If the solution looks cloudy, changes colour, or shows particles floating in it at any point, do not use it — those are signs of degradation or contamination.
For research and educational use only. Not medical advice.