CJC-1295 DAC Dosing Protocol: 5 mg Vial — Multi-Week Supply Guide
Quickstart highlights
CJC-1295 DAC with the Drug Affinity Complex maleimide modification produces serum half-life of 6–8 days via albumin binding, enabling once-weekly GHRH stimulation.
- Concentration: 2 mg/mL (5 mg vial + 2.5 mL bacteriostatic water).
- At 2 mg/mL: 1 mg = 50 units, 2 mg = 100 units once weekly.
- One 5 mg vial covers 5 injections at 1 mg/week or 2.5 injections at 2 mg/week.
- CJC-1295 DAC half-life: 6–8 days — once-weekly dosing is sufficient for therapeutic GH elevation.
- Refrigerate; use within 28 days.
Dosing table
For educational reference only. Your prescribing provider may adjust doses based on your clinical profile and response.
| Week | Dose (µg) | Units | Frequency | Notes |
|---|---|---|---|---|
| 1-4 | 1000 | 50 | Once weekly | 1 mg — 50 units; 5 mg vial provides 5 weekly doses |
| 5-12 | 2000 | 100 | Once weekly | 2 mg — 100 units; 5 mg vial provides 2.5 weekly doses at this level |
Your free CJC-1295 DAC tracker
- Dose reminders
- Injection logging
- Cycle progress
Reconstitution steps
- Draw 2.5 mL bacteriostatic water; inject slowly down the vial wall.
- Swirl gently until lyophilized powder dissolves; do not shake.
- Final concentration: 2 mg/mL. Label with date; refrigerate at 2–8 °C. Use within 28 days.
- Note: at 2 mg weekly dosing, one 5 mg vial provides 2 full injections plus one 1 mg partial — plan accordingly.
Supplies needed
8-week plan
- 2 vials
- 8 syringes
- 5 mL bac water
- 8 alcohol swabs
12-week plan
- 3 vials
- 12 syringes
- 8 mL bac water
- 12 alcohol swabs
Protocol overview & cycle notes
Provide a multi-week CJC-1295 DAC supply from the efficient 5 mg vial for patients established on once-weekly 1–2 mg dosing protocols, minimizing reconstitution frequency.
Cycle length: 12 weeks on.
Off-cycle: 4–6 weeks off; measure IGF-1 before resuming.
Storage & handling
Injection & tracking tips
- CJC-1295 DAC's once-weekly dosing allows injection on any convenient day; maintain consistent weekly interval (±24 hours).
- Combine with a daily GHRP (ipamorelin 200 µg at bedtime) for maximum GH axis activation while maintaining the convenient weekly DAC schedule.
- The 5 mg vial is most efficient for 1 mg weekly dosing — provides 5 weeks from a single reconstitution.
Tracking
Logging helps you and your provider spot patterns and adjust dose or timing.
- Measure IGF-1 at baseline, 4 weeks, and 8 weeks.
- Track fasting glucose monthly — sustained GH elevation from DAC formulation may impair insulin sensitivity over time.
- Monitor for carpal tunnel symptoms (wrist tingling) — a common early indicator of supraphysiological GH levels.
How this works & references
Sources
- Prolonged stimulation of growth hormone (GH) and insulin-like growth factor I secretion by CJC-1295, a long-acting analog of GH-releasing hormone, in healthy adults. Teichman SL et al. — J Clin Endocrinol Metab — 2006
- Activation of the GH/IGF-1 axis by CJC-1295, a long-acting GHRH analog, results in serum protein profile changes in normal adult subjects. Sackmann-Sala L et al. — Growth Horm IGF Res — 2009
Frequently asked questions
Is 2 mg weekly the correct dose for most patients?
Can I use the 5 mg vial for twice-weekly dosing?
How does IGF-1 track week-by-week with CJC-1295 DAC?
What happens to GH secretion during the off-cycle?
Do I need to keep the 5 mg vial cold immediately after reconstitution?
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View protocolThis content is for informational purposes only and does not constitute medical advice. Consult a licensed healthcare provider before starting any peptide therapy. Dosing and protocols may vary by formulation and prescriber.