What CJC-1295 is
CJC-1295 is a stabilized analog of growth-hormone-releasing hormone, and the name is used loosely for two distinct compounds. Without DAC (properly Mod GRF 1-29) it produces a short, sharp GHRH pulse and is dosed like a secretagogue, one to three times daily. With DAC it binds albumin and elevates GH baseline for a week per injection, a different physiological effect (sustained elevation rather than pulses) with different tradeoffs.
The community default is no-DAC paired with ipamorelin in the same syringe, on the logic that a GHRH analog plus a GHRP amplify the same pulse through complementary receptors. Check which version a vendor vial actually is before doing any math; the dosing differs by an order of magnitude.
Reconstitution math
Concentration is everything: the same 5 mg vial gives a different draw for every amount of bacteriostatic water you add. The table uses the common 2 mL setup for each vial size, which puts every unit on a U-100 insulin syringe at 25 mcg for the default vial. Dashes mark draws too small to measure or larger than the syringe.
| Vial | BAC water | Concentration | 100 mcg | 200 mcg | 300 mcg |
|---|---|---|---|---|---|
| 2 mg | 2 mL | 1 mg/mL | 10 u | 20 u | 30 u |
| 5 mg | 2 mL | 2.5 mg/mL | 4 u | 8 u | 12 u |
| 10 mg | 2 mL | 5 mg/mL | 2 u | 4 u | 6 u |
Dosing and protocol
Community protocol (no DAC): 100 mcg 1 to 3 times daily, almost always paired with ipamorelin; DAC version: about 2 mg once weekly.
For the no-DAC version, community protocols run 100 mcg per injection, one to three times daily, commonly at night. On a 5 mg vial with 2 mL of water, 100 mcg is 4 units. The DAC version is dosed around 2 mg once weekly. The blend calculator handles the combined CJC + ipamorelin draw.
Pharmacokinetics
No curve is shown, on purpose.
The name covers two different molecules. CJC-1295 with DAC has real human pharmacokinetics: a 6 to 8 day half-life from albumin binding (Teichman 2006). The no-DAC version (Mod GRF 1-29), which is what most community protocols mean, has no formal human PK and is expected to clear in well under an hour like other GRF analogs. Plotting either number on a page that covers both would mislead, so neither is plotted.
Storage and handling
Lyophilized vials keep best cold, dark, and dry; refrigeration is the community default and freezing lyophilized powder is common for long holds. After reconstitution, refrigerate at 2 to 8 C, do not freeze the solution, and date the vial. Bacteriostatic water's preservative keeps multi-dose use practical for about 28 days by USP convention, though our 120-day stability study found the preservative itself outlasts that window.
Got a certificate of analysis with your vial? Run it through our COA Reader: it reads the report in plain English, checks purity and mass against the label claim, and links the testing lab’s own verification page. Our guide to reading a COA explains what the numbers do and do not tell you.
Sources
- Teichman et al., Prolonged stimulation of GH and IGF-1 secretion by CJC-1295, J Clin Endocrinol Metab 2006
- Ionescu and Frohman, Pulsatile GH secretion with continuous GHRH analog administration, J Clin Endocrinol Metab 2006