Enter your CJC-1295 vial size and the volume of bacteriostatic water you are adding. The calculator returns the concentration in mcg/ml and the exact units to draw on a U-100 insulin syringe. It works for both the DAC and no-DAC (Mod GRF 1-29) versions.
Quick-fill by compound
Results
Concentration
2500 mcg/ml
2.5 mg/ml
Volume to inject
0.04 ml
per dose
Units on insulin syringe (U-100)
4 units
on a standard 100-unit insulin syringe
Doses per vial
50 doses
at 100 mcg each
How this is calculated
5mg × 1,000 = 5000 mcg total
5000 ÷ 2ml = 2500 mcg/ml
100 mcg ÷ 2500 = 0.04 ml
0.04 ml × 100 = 4 units
Disclaimer: This calculator is provided for informational purposes only. Always verify results against your specific vial labelling before use. Peptidy does not provide medical advice — consult a qualified healthcare professional before beginning or modifying any protocol. Use of research peptides may be subject to legal restrictions in your jurisdiction.
CJC-1295 is a growth-hormone-releasing hormone analogue. The no-DAC version (Mod GRF 1-29) is short-acting and dosed around 100mcg several times a day, often with ipamorelin; the DAC version is long-acting and dosed less frequently. The reconstitution maths is the same for both — only the dose and frequency differ.
Ranges commonly reported in research use. Confirm which version you have — DAC and no-DAC are dosed very differently despite the shared name.
| No-DAC (Mod GRF 1-29) | 100 mcg per injection, 1–3 times daily |
| With DAC | typically 1–2 mg once or twice weekly |
Worked example: 5mg vial + 2ml BAC water, 100mcg dose
2ml gives 2,500 mcg/ml, so a 100mcg no-DAC dose is 0.04ml = 4 units. Because 4 units is small, some people add less water (e.g. 1ml for 5,000 mcg/ml) — though that makes each unit worth more, so measure carefully.
DAC (Drug Affinity Complex) greatly extends the half-life, so it is dosed roughly weekly in milligram amounts. The no-DAC version (Mod GRF 1-29) is short-acting and dosed around 100mcg several times a day. Always confirm which you have before dosing — the reconstitution calculation is identical but the amounts are not.
With a 5mg vial reconstituted in 2ml (2,500 mcg/ml): 100 ÷ 2,500 = 0.04ml = 4 units. With a 2mg vial in 2ml (1,000 mcg/ml): 100 ÷ 1,000 = 0.1ml = 10 units.
Refrigerate at 2–8°C away from light and label the vial with the date. Reconstituted CJC-1295 is commonly used within 4–6 weeks. Do not freeze it.
Store your vial concentration, log every dose against it, and never lose track of what you injected or when.