How the Ipamorelin / CJC-1295 Blend calculator works
Lyophilized (freeze-dried) powder containing both compounds, labelled with the combined weight and the split. The calculator has one field for each compound, and the quick-fill button sets the most common label split (5 mg + 5 mg). If your label is different, type each figure in.
Amounts of Ipamorelin / CJC-1295 Blend are usually written in micrograms (mcg), so the calculator opens in mcg.
For a field-by-field walkthrough and a guide to syringe types, see the main peptide calculator.
Ipamorelin / CJC-1295 Blend concentration table
Each labelled vial size at the same three round water volumes used across this site. It shows how the arithmetic behaves and is not a suggestion of what to use.
| Vial | Water added | Ipamorelin | CJC-1295 |
|---|---|---|---|
| 5 mg + 5 mg vial | 1 mL | Ipamorelin: 5 mg/mL | CJC-1295: 5 mg/mL |
| 5 mg + 5 mg vial | 2 mL | Ipamorelin: 2.5 mg/mL | CJC-1295: 2.5 mg/mL |
| 5 mg + 5 mg vial | 3 mL | Ipamorelin: 1.67 mg/mL | CJC-1295: 1.67 mg/mL |
Every row for a given vial holds the same total. To compare volumes for a specific reading, use the BAC water calculator.
The formula, step by step
The “Try example numbers” button uses one fixed rule on every page: the smallest labelled vial (here, the first compound in the most common split), 2 mL of water, and whatever amount lands on the 10-unit mark. The amount is a by-product of that rule and not a typical or suggested Ipamorelin / CJC-1295 Blend dose.
- Concentration: 5 mg ÷ 2 mL = 2.5 mg/mL.
- The 10-unit mark is 10 ÷ 100 = 0.1 mL, which holds 0.1 × 2.5 = 0.25 mg (250 mcg).
- Run it forwards to check: 0.25 mg ÷ 2.5 mg/mL = 0.1 mL, and 0.1 × 100 = 10 units.
Ipamorelin / CJC-1295 Blend: general reference
General educational reference for research purposes only. None of it is a recommendation, none of it is medical advice, and none of it is used by the calculator, which works only on the numbers you enter.
A blend vial holds two different compounds freeze-dried together: ipamorelin, a ghrelin-receptor agonist, and CJC-1295, a GHRH analog that is usually the form without DAC. The label normally states the combined weight and the split, for example 10 mg made up of 5 mg plus 5 mg.
There are no published clinical studies of this combination as a fixed blend. What is known comes from separate studies of each compound, which are described on their own pages.
A blend fixes the ratio. Whatever volume is drawn up contains both compounds in the proportion they were mixed in, and nothing done afterwards can change that.
No blend of the two has been approved by any regulator.
- Class
- Two compounds freeze-dried in one vial
- Group
- Growth hormone and IGF-1 axis
- Also known as
- Ipamorelin + CJC-1295, Ipa/CJC blend
- Molecular weight
- Ipamorelin about 712 Da. CJC-1295 without DAC about 3,368 Da.
- Half-life
- Different for each compound. Ipamorelin: about 2 hours in healthy volunteers (Gobburu et al., 1999). CJC-1295 without DAC has no published human pharmacokinetic study. If the vial contains CJC-1295 with DAC instead, that form was estimated at 5.8 to 8.1 days (Teichman et al., 2006).
- Regulatory status
- Not approved as a medicine. Neither compound, and no blend of the two, is approved as a medicine by the FDA, the EMA or any other major regulator. Their position in US pharmacy compounding has changed since 2023, so check the FDA’s current bulk drug substances lists for the present status.
- Status in sport
- Both compounds are named in section S2 of the WADA Prohibited List and are prohibited at all times.
- Labelled vial sizes
- 10 mg
Arithmetic slips to watch for with Ipamorelin / CJC-1295 Blend
Never enter the combined total as one compound
A 10 mg blend that is 5 mg plus 5 mg, mixed with 2 mL of water, has 2.5 mg/mL of each compound. Treating it as a 10 mg vial of one compound gives 5 mg/mL, which is double, and every result after that is wrong by half.
One draw always holds both
At 2.5 mg/mL of each, 10 units on a U-100 syringe holds 250 mcg of ipamorelin and 250 mcg of CJC-1295 at the same time. With an uneven split the two amounts differ in the same ratio as the label. The calculator shows both figures.
Say which compound your number refers to
A dose in your records is an amount of one of the two compounds. Tell the calculator which, and it works out the volume from that compound’s concentration, then shows how much of the other comes with it.
What this page does not do
The calculator performs mathematical conversions only. It does not recommend, suggest or verify any Ipamorelin / CJC-1295 Blend dose or schedule, it does not say how much water to add, and it does not say what Ipamorelin / CJC-1295 Blend is for, whether it is safe, or whether it is legal where you live. It is not medical advice, diagnosis or treatment, and Peptrack does not sell, supply or endorse any substance.
Always confirm measurements with a licensed healthcare provider or pharmacist. See the full disclaimer.
Sources
- Gobburu et al. (1999), pharmacokinetic-pharmacodynamic modeling of ipamorelin in human volunteers, Pharmaceutical Research
- Teichman et al. (2006), CJC-1295, a long-acting analog of GHRH, in healthy adults, Journal of Clinical Endocrinology & Metabolism
- WADA Prohibited List
Facts last checked: September 2026. Regulatory status changes, so check the regulator’s own pages for the current position.
