How to Prepare Peptides into Storage Cartridges
This guide explains how research peptides are first reconstituted in their original vial and then transferred into sterile cartridges (if using pens) for sealed storage and easier handling. It does not provide medical, veterinary, dosing, injection, or administration advice.
Essential Materials

Peptide vial

Sterile water or suitable research diluent

Reconstitution kit

Sterile cartridge

Clean preparation surface

Alcohol swabs

Product label or marker for mixing date

Step-by-Step Instructions
1
Prepare the workspace. Wash and dry your hands. Clean the preparation surface and place all required materials within reach. You will need: Peptide vial 3 mL sterile water New sterile syringe and needle Alcohol swabs Approved sharps container Compatible sterile cartridge, if required
2
Check the vials. Confirm the product name, vial strength, batch details and expiry dates. Check that the seals are intact and that neither container is cracked, leaking or damaged. Do not use sterile water that appears cloudy, discoloured or contaminated.
3
Clean the stoppers. Remove the protective caps from the peptide and sterile-water vials. Wipe each rubber stopper with a separate alcohol swab and allow it to air-dry. Avoid touching the cleaned stoppers.
4
Withdraw 3 mL of sterile water. Tetratide Labs typically uses 3 mL of sterile water per research vial. Using a new sterile syringe and needle, carefully withdraw 3 mL from the sterile-water vial.
5
Add the sterile water slowly. Insert the needle through the peptide vial’s rubber stopper. Slowly direct the sterile water against the inside wall of the vial instead of spraying it directly onto the powder. This helps reduce foaming and unnecessary agitation. Remove the syringe and dispose of the needle and syringe safely. Never reuse either item.
6
Gently dissolve the material. Allow the liquid to run down the inside wall of the vial. Gently roll or swirl the vial until the material has dissolved. Do not shake the vial vigorously. Some materials dissolve immediately, while others may require additional time. Do not heat the vial.
7
Transfer to a cartridge when required. Reconstitute and inspect the material in its original vial before transferring it. Where a compatible reusable pen system forms part of an approved research protocol, trained personnel may transfer the prepared solution into a compatible sterile cartridge using new sterile transfer equipment. Pen and cartridge systems are generally associated with small-volume handling, including human-derived, canine and feline research models. Equine research frequently requires different, larger-volume equipment. Selection of needles, syringes, delivery equipment and administration methods must be made by a qualified medical professional, veterinarian or trained researcher. Tetratide Labs does not provide human or veterinary injection guidance.
Research Concentrations
The dilution volume determines the technical concentration of a liquid research sample. These calculations are strictly for laboratory research and are not intended for clinical or veterinary use.
Formula: Mass (mg) / Volume (ml) = Concentration (mg/ml)
80 mg peptide in 2 ml = 40.00 mg/ml
80 mg peptide in 4 ml = 20.00 mg/ml
80 mg peptide in 5 ml = 16.00 mg/ml
80 mg peptide in 8 ml = 10.00 mg/ml
80 mg peptide in 10 ml = 8.00 mg/ml

Storage & Handling
- Keep prepared research peptides refrigerated unless product-specific guidance says otherwise.Avoid heat, direct sunlight, and repeated temperature changes.Keep vials and cartridges sealed when not in use.Use clean, sterile handling practices.Discard any product that becomes cloudy, contaminated, damaged, or shows visible particles.Always record the preparation date.