How to Reconstitute Peptides
Most research peptides ship as lyophilized (freeze-dried) powder that must be reconstituted with bacteriostatic water (BAC water) before use. This guide covers the standard reconstitution process for research applications.
What You Need
- Lyophilized peptide vial (e.g., BPC-157 10mg, Retatrutide 10mg, etc.)
- Bacteriostatic water (BAC water, 0.9% benzyl alcohol preserved)
- Insulin syringes (1ml / 100 unit)
- Alcohol swabs for vial tops
Step-by-Step Process
1Clean vial tops. Wipe the rubber stopper of both the peptide vial and BAC water vial with an alcohol swab. Let dry for 10 seconds.
2Draw BAC water. Using an insulin syringe, draw your desired volume of bacteriostatic water. Common volumes: 1ml, 2ml, or 3ml depending on your target concentration.
3Inject slowly along the vial wall. Insert the needle into the peptide vial at an angle and release the BAC water slowly down the glass wall — not directly onto the powder. This prevents damage to the peptide structure.
4Swirl gently. Roll the vial between your palms or tilt it gently to dissolve. Never shake vigorously — this can denature the peptide.
5Wait until fully dissolved. The solution should be clear with no visible particles. Most peptides dissolve within 1–3 minutes. If cloudiness persists after 5 minutes, refrigerate for 30 minutes and try again.
6Store properly. Refrigerate at 2–8°C (35–46°F). Use within 2–4 weeks for optimal potency. Never freeze reconstituted peptides.
Concentration Math
The concentration after reconstitution depends on how much BAC water you add:
| Peptide Amount | BAC Water | Concentration | Per 10 units (0.1ml) |
|---|---|---|---|
| 10mg | 1ml | 10mg/ml | 1mg |
| 10mg | 2ml | 5mg/ml | 0.5mg (500mcg) |
| 10mg | 3ml | 3.33mg/ml | 333mcg |
| 5mg | 1ml | 5mg/ml | 0.5mg (500mcg) |
| 5mg | 2ml | 2.5mg/ml | 250mcg |
Use the peptide reconstitution calculator for custom amounts.
Common Mistakes
- Spraying water directly on powder — always inject down the vial wall
- Shaking the vial — denatures peptide structure; swirl gently instead
- Using sterile water instead of BAC water — sterile water lacks preservative and expires faster
- Room temperature storage — reconstituted peptides degrade rapidly outside 2–8°C
- Reusing syringes — contaminates the vial; use a fresh syringe each time
Reconstitution for Ascension Stack Compounds
The Clavicular Ascension Stack includes 10 lyophilized compounds that require reconstitution, plus 1 oil injectable (ready to use) and 1 oral tablet bottle. All lyophilized compounds follow the same reconstitution process above.
Clavicular Ascension Stack — 12 Compounds
All 12 compounds from QSC. ≥99% HPLC purity, Janoshik COA, free domestic shipping from USA, EU, UK, CA, AU.
Get the Ascension Stack at QSC →