Every peptide and HGH vial ships as a dry powder that you mix with bacteriostatic water before the first injection. This guide walks you through the full process: equipment, sterile technique, mixing, and storage.
Takes about 2 minutes
What you will need
- Peptide vial – the freeze-dried (lyophilized) powder you are mixing
- Bacteriostatic water – the standard solvent (get it here)
- Insulin syringes (1 ml / 100 units) for both mixing and injecting
- Alcohol swabs (70% isopropyl)
- A clean, flat surface
Reconstitution steps 7 steps
Prepare your supplies
Gather everything before you start: peptide vial, bacteriostatic water, alcohol swabs, insulin syringe, and a clean surface. Wash your hands thoroughly with soap and water.
If your peptide vial is cold from the fridge, let it sit until it reaches room temperature before mixing. Cold powder dissolves more slowly.
Inspect the vial
Check that the peptide powder is dry, intact, and undisturbed. It should appear as a small white or off-white disc or powder at the bottom of the vial.
Disinfect the vials
Use an alcohol swab to clean the rubber stopper of both the peptide vial and the bacteriostatic water vial. Apply firm pressure in a circular motion and let the alcohol air dry completely before puncturing.
Draw the bacteriostatic water
Using an insulin syringe, draw the correct amount of bacteriostatic water. The amount depends on your peptide and the dose you want. Pull the plunger slowly to avoid air bubbles.
Inject the water into the peptide vial
Insert the needle through the rubber stopper and angle it so the water runs down the inside wall of the vial. Release the plunger slowly and let the water trickle gently onto the powder. Never spray water directly onto the peptide – this can damage the molecule.
Mix gently
Gently swirl the vial in a slow circular motion. Most peptides dissolve within 1-2 minutes. The solution should turn completely clear with no visible particles. Do not shake the vial – shaking creates foam and can break down the peptide.
If the powder does not fully dissolve after 5 minutes of gentle swirling, place the vial in the fridge for 15-30 minutes and try again. Some peptides take longer to dissolve.
Store it properly
Store the reconstituted peptide in the refrigerator at 2-8 degrees C, upright and away from light. Do not freeze it. Most reconstituted peptides stay stable for 28 days when stored correctly.
Storage at a glance
Some peptides differ: HCG keeps up to 60 days, while MOD GRF 1-29 and Follistatin are more fragile and should be used within 14 days. When in doubt, discard a vial that looks cloudy or discolored, has floating bits, or was left out of the fridge.
Is my vial still OK?
A quick check before you inject. Most surprises are harmless – here is what is fine and what means bin it.
Still good – carry on
- A faint yellow tint. Normal for some peptides.
- A little foam or a few bubbles after adding water. Let it settle, then use.
- Powder slow to dissolve. Swirl gently, or fridge it 15-30 minutes; it is fine once it turns clear.
- You added slightly too much or too little water. The peptide is unaffected – just recalculate your dose for the amount you added.
Stop – do not use
- Cloudy, or particles that will not clear after warming and gentle swirling.
- A strong colour – brown, pink, or green.
- Tiny rubber bits floating in the liquid (coring).
- Liquid already in the vial before you added water. Do not use it – contact info@deuspower.info.
- Left out of the fridge for a long time, or past its shelf life.
Common mistakes to avoid
- Spraying water onto the powder. Always aim down the side of the vial wall.
- Shaking the vial. Swirl gently – shaking denatures the peptide.
- Using sterile water instead of bacteriostatic water. Sterile water has no preservative and must be used immediately; bac water allows multi-dose use over weeks.
- Storing at room temperature. Reconstituted peptides degrade quickly outside the fridge.
- Reusing syringes. Use a fresh syringe for each injection to keep things sterile.
- Forgetting to disinfect. Swab the rubber stopper with alcohol before every puncture.
- Coring the rubber stopper. Many punctures in the same spot can shed tiny rubber fragments into the solution. Insert at a slight angle and reuse the same entry point – and discard the vial if you see rubber particles floating in it.
Injecting your peptide
Reconstituted peptides go in subcutaneously (SubQ): pinch a fold of belly, flank, or outer-thigh fat, insert at a 45-degree angle, inject slowly, then rotate sites each time. For the full SubQ technique, sites, and rotation, see our injection guide.
Reconstitution FAQ
How much bacteriostatic water should I add?
What if I add too much or too little water?
What is the difference between bacteriostatic water and sterile water?
Can I freeze a reconstituted peptide?
The powder will not fully dissolve. What do I do?
How long does a reconstituted vial last?
Can I reuse the same syringe for the next injection?
I see tiny rubber bits in the vial. What happened?