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How to reconstitute peptides step by step: supplies, sterile technique, gentle mixing, storage and the concentration math.
How to properly prepare lyophilized peptides for injection
Contains 0.9% benzyl alcohol as preservative — extends shelf life of reconstituted peptide
1 mL syringes with 28–31 gauge needles for subcutaneous injection
For sterilizing vial tops and injection sites
For safe disposal of used needles
Collect your peptide vial, BAC water, insulin syringe, and alcohol swabs. Work on a clean surface.
Wipe the rubber stopper of both the peptide vial and BAC water vial with an alcohol swab. Allow to air dry.
Insert the syringe into the BAC water vial and draw the desired volume (typically 1–2 mL per vial).
Insert the syringe into the peptide vial. Aim the water at the glass wall, not directly at the powder. Do NOT shake.
Gently swirl the vial in a circular motion until the powder is fully dissolved. The solution should be clear.
Label the vial with the date of reconstitution and concentration. Store in the refrigerator (2–8°C).
Maintaining peptide potency through proper storage
Essential safety considerations for peptide research protocols
Most peptides can stimulate growth pathways
Insufficient safety data for any peptide
Contraindicated for GLP-1 agonists (semaglutide, tirzepatide)
Contraindicated for GLP-1 agonists
Contraindicated for GHK-Cu (copper peptide)
Immunomodulatory peptides may affect rejection risk
Baseline + every 3 months — For GH-stimulating peptides
Baseline + every 3 months — For metabolic peptides
Baseline + every 6 months — General safety monitoring
Baseline + every 6 months — GLP-1 agonists affect lipids
Baseline — Hypothyroidism reduces GH response
Pinch skin at abdomen, thigh, or upper arm. Insert needle at 45° angle. Release skin before injecting. Most peptides use this route.
Inject into the deltoid, vastus lateralis, or ventrogluteal muscle. Insert at 90° angle. Aspirate before injecting (optional).
For Selank and Semax. Tilt head back slightly. Insert tip into nostril. Spray while inhaling gently through nose.
Quick reference for calculating injection volumes
Desired Dose (mcg) ÷ Concentration (mcg/mL)
Vial: 5 mg + 2 mL BAC water
Concentration: 2500 mcg/mL
Desired dose: 500 mcg
Vial: 2 mg + 2 mL BAC water
Concentration: 1000 mcg/mL
Desired dose: 300 mcg
| Peptide | Dose | Conc. | Volume |
|---|---|---|---|
| BPC-157 | 500 mcg | 2500 mcg/mL | 0.2 mL |
| TB-500 | 2.5 mg | 5 mg/mL | 0.5 mL |
| Ipamorelin | 300 mcg | 1000 mcg/mL | 0.3 mL |
| CJC-1295 | 100 mcg | 1000 mcg/mL | 0.1 mL |
| Sermorelin | 1500 mcg/mL | 1000 mcg/mL | 0.2 mL |
| Epithalon | 5 mg | 5 mg/mL | 1.0 mL |
* Volumes are examples based on standard reconstitution. Always calculate based on your actual concentration.