Bacteriostatic Water for CJC-1295 Reconstitution
This guide covers everything researchers need to know about using bacteriostatic water to reconstitute CJC-1295 — from selecting the right vial size and calculating concentrations, to proper mixing technique and storage. All bacteriostatic water used in research should be USP-grade with verified purity documentation.
Quick Reference: CJC-1295 Reconstitution
| Compound Class | GHRH analogue (Growth Hormone Releasing Hormone) |
| Research Application | growth hormone axis and longevity research |
| Typical Vial Size | 2mg or 5mg lyophilized powder |
| Recommended BAC Water Volume | 2ml bacteriostatic water per 2mg vial (yields 1mg/mL = 1,000mcg/mL) |
| Reconstitution Solvent | Bacteriostatic Water (0.9% Benzyl Alcohol) |
| Storage After Reconstitution | Refrigerate at 2–8°C. Use within 28 days of reconstitution. |
What Is CJC-1295?
CJC-1295 is a synthetic analogue of growth hormone-releasing hormone (GHRH). It comes in two forms: CJC-1295 without DAC (also called Mod GRF 1-29), which has a short half-life, and CJC-1295 with DAC (Drug Affinity Complex), which binds to albumin for an extended half-life. Both are reconstituted using bacteriostatic water.
Like most research compounds of this type, CJC-1295 is supplied as lyophilized (freeze-dried) powder. Before use in research protocols, it must be reconstituted with an appropriate sterile solvent. Bacteriostatic water is the preferred reconstitution solvent because its 0.9% benzyl alcohol preservative protects multi-use research vials from contamination.
Why Use Bacteriostatic Water for CJC-1295?
- Multi-dose protection: The 0.9% benzyl alcohol preservative inhibits microbial growth between vial accesses
- 28-day stability window: Extends the usable life of reconstituted solution versus single-use with plain sterile water
- pH compatibility: BAC water pH of 4.5–7.0 is compatible with CJC-1295
- Full traceability: Renew Lab Group BAC water ships with HPLC-verified COA documentation
See the full comparison: Bacteriostatic Water vs Sterile Water
Step-by-Step Reconstitution Protocol
- Gather materials: CJC-1295 vial, bacteriostatic water vial, syringe, alcohol swabs, clean work surface
- Disinfect both vial stoppers with an alcohol swab — let air dry for 30 seconds
- Draw the appropriate volume of bacteriostatic water into the syringe
- Inject BAC water slowly down the inner glass wall of the peptide vial — never directly onto the powder
- Gently swirl (do not shake) until the powder is completely dissolved and the solution is clear
- Label and refrigerate immediately: note date, compound name, and calculated concentration
Full reference: Peptide Reconstitution Best Practices | Reconstitution Guide Page
Concentration Formula
Choosing Your BAC Water Vial Size
| Vial | Best For | Price |
|---|---|---|
| 10ml vial | Multiple reconstitutions — one BAC water vial serves several peptide vials | From $6.99 |
| 30ml vial | High-volume research protocols with frequent reconstitutions | From $8.99 |
Quality Standards: Renew Lab Group BAC Water
Every lot of Renew Lab Group bacteriostatic water is: manufactured in an ISO-compliant Houston, TX cleanroom; HPLC-tested for 0.9% benzyl alcohol concentration; endotoxin-tested (LAL method, <0.25 EU/mL); pH-verified (4.5–7.0); sterile-filtered through 0.22-micron membranes; and shipped with a batch-specific Certificate of Analysis.
View sample COA | About our HPLC testing
Frequently Asked Questions
What is the difference between CJC-1295 with DAC and without DAC?
CJC-1295 with DAC contains a lysine linker that binds to blood albumin, extending its half-life to approximately 8 days. CJC-1295 without DAC (Mod GRF 1-29) has a half-life of approximately 30 minutes. Both use bacteriostatic water for reconstitution.
How much bacteriostatic water do I add to CJC-1295?
For a 2mg CJC-1295 vial, add 2ml of bacteriostatic water for a 1,000mcg/mL concentration. For a 5mg vial, add 5ml for the same concentration, or less for a more concentrated solution.
Can CJC-1295 be mixed with Ipamorelin in the same vial?
Some researchers reconstitute them in separate vials and combine doses in the same syringe just before use. This avoids potential long-term stability issues from blending two different peptides in one vial.
How do I store CJC-1295 after reconstitution?
Store reconstituted CJC-1295 in a refrigerator at 2–8°C, protected from light. Use within 28 days. Lyophilized powder (pre-reconstitution) can be stored frozen for long-term stability.
Related guides: Semaglutide | BPC-157 | TB-500 | HGH
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