CJC-1295 DAC dosage chart
2 mg Vial
CJC-1295 DAC is dosed at 2 mg weekly via subcutaneous injection in educational protocols. A 2 mg vial reconstituted with bacteriostatic water yields about 2.0 mg/mL. This information is for research and educational use only.
- Reconstitute
- Add 1.0 mL bacteriostatic water → 2.0 mg/mL (2,000 mcg/mL) concentration.
- Typical weekly dose
- 2,000 mcg (2 mg) once weekly — the full vial per injection.
- Easy measuring
- At 2.0 mg/mL, 1 unit = 0.01 mL = 20 mcg on a U-100 insulin syringe; full dose = 100 units (1.00 mL).
- Storage
- Lyophilized: freeze at −20 °C (−4 °F); after reconstitution, refrigerate at 2–8 °C (35.6–46.4 °F); avoid freeze–thaw cycles.
Dosing schedule
| Week | Weekly Dose (mcg) | Units (per injection) (mL) |
|---|---|---|
| Weeks 1–12 | 2,000 mcg (2 mg) | 100 units (1.00 mL) |
Reconstitution steps
- 1Draw 1.0 mL bacteriostatic water with a sterile syringe.
- 2Inject slowly down the vial wall; avoid foaming or direct stream onto the powder.
- 3Gently swirl/roll until dissolved (do not shake vigorously).
- 4Label with reconstitution date and refrigerate at 2–8 °C (35.6–46.4 °F), protected from light.
Important Notes
Practical considerations for consistency and safety.
- Use new sterile insulin syringes for each injection; dispose in a sharps container.
- Rotate injection sites weekly (abdomen, thighs, upper arms) to reduce local irritation.
- Inject on an empty stomach (at least 2 hours after a meal) as elevated blood sugar may blunt GH release.
- Document weekly dose, date, and site rotation to maintain consistency.
How This Works
CJC-1295 DAC is a modified 30-amino-acid GHRH analog conjugated to a Drug Affinity Complex (DAC) that covalently binds to serum albumin after injection. This albumin binding dramatically extends the peptide’s half-life from minutes to approximately 6–8 days, enabling once-weekly dosing. CJC-1295 binds to GHRH receptors on pituitary somatotrope cells, amplifying GH synthesis and pulsatile release. Importantly, it elevates basal GH levels while preserving the natural rhythm of GH pulses — the frequency and amplitude remain intact. Clinical trials demonstrate sustained 2–10 fold increases in GH and 1.5–3 fold increases in IGF-1, with elevated IGF-1 persisting for up to 28 days after multiple doses.
Potential Benefits & Side Effects
Observations from preclinical and clinical literature.
- Sustained elevation of GH and IGF-1 levels supporting muscle growth, recovery, and lean body composition.
- Enhanced fat metabolism and potential reduction in visceral adiposity.
- Improved sleep quality — GHRH analogs may have somnogenic effects, increasing deep slow-wave sleep.
- Preserves natural GH pulsatility unlike exogenous GH administration.
- Common side effects may include transient flushing, injection-site reactions, water retention, or headache; serious adverse effects are uncommon at standard doses.
Lifestyle Factors
Complementary strategies for best outcomes.
- Pair with a balanced, protein-forward diet tailored to energy and recovery needs.
- Combine resistance training and aerobic activity to reinforce anabolic and metabolic adaptations.
- Prioritize sleep quality — GH is primarily secreted during slow-wave sleep.
- Avoid eating 2+ hours before injection to optimize GH release response.
Injection Technique
General subcutaneous guidance from clinical best-practice resources.
- Clean the vial stopper and skin with alcohol; allow to dry completely.
- Pinch about an inch of skin at the injection site (lower abdomen, outer thigh, or upper arm).
- Insert the needle at a 90° angle into the pinched fold (use 45° if minimal subcutaneous fat).
- Depress the plunger fully, then withdraw the needle and dispose in a sharps container.
- Rotate sites weekly to prevent lipohypertrophy — for example, alternate between left and right abdomen.
important-note
This content is for educational purposes only and is not medical advice.
CJC-1295 DAC dosage FAQs
How much bacteriostatic water do you use to reconstitute CJC-1295 DAC?
Add 1.0 mL bacteriostatic water → 2.0 mg/mL (2,000 mcg/mL) concentration. for a 2 mg Vial vial. Add the water slowly against the inside wall of the vial and swirl — never shake — until the powder fully dissolves.
What is a typical CJC-1295 DAC dose?
Typical weekly dose: 2,000 mcg (2 mg) once weekly — the full vial per injection.. Figures are research reference values only.
What does the CJC-1295 DAC dosing schedule look like?
Weeks 1–12 — 2,000 mcg (2 mg) — 100 units (1.00 mL). The full table above lists every step with matching syringe units.
What are the mixing steps for CJC-1295 DAC?
Draw 1.0 mL bacteriostatic water with a sterile syringe. Inject slowly down the vial wall; avoid foaming or direct stream onto the powder. Gently swirl/roll until dissolved (do not shake vigorously).
How should reconstituted CJC-1295 DAC be stored?
Storage: Lyophilized: freeze at −20 °C (−4 °F); after reconstitution, refrigerate at 2–8 °C (35.6–46.4 °F); avoid freeze–thaw cycles..
How many insulin syringe units equal a CJC-1295 DAC dose?
Units depend on the water volume you used. Divide your target dose by the vial concentration to get millilitres, then multiply by 100 — 1 unit on a U-100 insulin syringe is 0.01 mL. The Spartan Peptides reconstitution calculator does this conversion for you.
Is CJC-1295 DAC approved for human use?
No. CJC-1295 DAC is sold and referenced strictly as a research chemical. Nothing on this page is medical advice and the material is not for human consumption.
Educational and research information only. Not medical advice, not for human consumption. Values are reference figures — always verify your own math with the reconstitution calculator.
On any insulin syringe, 1 unit = 0.01 mL, so unit counts above hold across brands.

