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CJC-1295 is a synthetic analogue of growth hormone releasing hormone (GHRH). You'll see two versions: CJC-1295 with DAC, which is modified to last much longer in the body, and CJC-1295 without DAC, often sold as "Mod GRF 1-29." They behave differently, so check which one is on your label. Neither has ever been approved by the FDA.
The FDA lists CJC-1295 among bulk substances nominated for compounding and later withdrawn, noting reports of serious adverse events including increased heart rate and a systemic vasodilatory reaction (FDA). In December 2024, the FDA's Pharmacy Compounding Advisory Committee voted against adding any form of CJC-1295 to the 503A bulk substances list (FDA advisory committee). It's also banned at all times on the WADA prohibited list.
Much of what's sold online is labelled "for research use only." We don't recommend buying peptides that way. This page doesn't suggest a dose. It only converts an amount you've been given into syringe units.
Step 1: Enter your vial size in mg. Use the amount printed on the vial. 1 mg is 1,000 mcg, and the calculator converts for you.
Step 2: Enter the bacteriostatic water you added. More water means a weaker solution and more units for the same amount.
Step 3: Choose your syringe. Microgram amounts come out as a small number of units, so a 0.3 mL (30 unit) syringe is usually the easiest to read accurately.
Step 4: Enter the amount in mcg. The presets are shortcuts, not recommendations.
With the defaults shown, a 2 mg vial mixed with 2 mL is 1 mg/mL (1,000 mcg/mL), so each unit holds 10 mcg and 100 mcg is 10 units. A 5 mg vial in the same 2 mL is 2.5 mg/mL, and 100 mcg drops to 4 units.
CJC-1295 is commonly sold in one vial with ipamorelin. Tick Blend next to the vial amount and enter each peptide with its mg, such as CJC-1295 5 mg and ipamorelin 5 mg. Use Dose Based On to choose whether your amount refers to the CJC-1295, the ipamorelin, or the whole blend. The result lists how much of each peptide is in the volume you draw.
100 units on a U-100 syringe is always 1 mL. How many micrograms that holds depends on your concentration.
1 mg/mL is a 2 mg vial in 2 mL, 2 mg/mL is a 2 mg vial in 1 mL, and 2.5 mg/mL is a 5 mg vial in 2 mL. The formula is: units = amount in mcg ÷ concentration in mcg/mL × 100.
Our peptide syringe units guide shows how to read each syringe size. There's also a dedicated ipamorelin calculator, the general peptide calculator for anything else, and PeptideKit to log each dose and remind you when it's due.
Divide the vial's mcg (mg × 1,000) by the mL of water added to get mcg/mL. Divide the amount you need by that concentration, then multiply by 100 for U-100 syringe units.
At 1 mg/mL (2 mg in 2 mL), 100 mcg is 10 units. At 2 mg/mL, it's 5 units. At 2.5 mg/mL, it's 4 units. This is a conversion example, not a suggested dose.
Yes. The math is identical for both versions, because it only depends on the mg in the vial and the water added. What differs is how the peptide acts in the body, which is a question for a clinician, not a calculator.
There's no FDA-reviewed dosing because CJC-1295 isn't an approved drug. Speak with a licensed clinician before using it.
An FDA advisory committee voted against adding it to the 503A bulk substances list in December 2024, and it isn't a component of any FDA-approved drug. Products sold as CJC-1295 online are not prescriptions.
Always consult with qualified healthcare professionals before starting any peptide therapy protocol. This information is for educational purposes only and does not constitute medical advice.
CJC-1295 Dosage Calculator
Enter your CJC-1295 vial size, how much bacteriostatic water was added, and the amount you were told to take in mcg. The calculator shows how many units to draw on a U-100 insulin syringe.
Peptide Amount in Vial
BAC Water
Syringe
Target Dose
Use the dose on your prescription. Presets are shortcuts, not recommendations.
Unit Rounding
Round the result to a whole or half unit mark you can read on your syringe.
Peptide Amount (Total in Vial)
Desired Concentration
Read This First: CJC-1295 Isn't an Approved Drug
CJC-1295 is a synthetic analogue of growth hormone releasing hormone (GHRH). You'll see two versions: CJC-1295 with DAC, which is modified to last much longer in the body, and CJC-1295 without DAC, often sold as "Mod GRF 1-29." They behave differently, so check which one is on your label. Neither has ever been approved by the FDA.
The FDA lists CJC-1295 among bulk substances nominated for compounding and later withdrawn, noting reports of serious adverse events including increased heart rate and a systemic vasodilatory reaction (FDA). In December 2024, the FDA's Pharmacy Compounding Advisory Committee voted against adding any form of CJC-1295 to the 503A bulk substances list (FDA advisory committee). It's also banned at all times on the WADA prohibited list.
Much of what's sold online is labelled "for research use only." We don't recommend buying peptides that way. This page doesn't suggest a dose. It only converts an amount you've been given into syringe units.
How to Use the CJC-1295 Dosage Calculator
Step 1: Enter your vial size in mg. Use the amount printed on the vial. 1 mg is 1,000 mcg, and the calculator converts for you.
Step 2: Enter the bacteriostatic water you added. More water means a weaker solution and more units for the same amount.
Step 3: Choose your syringe. Microgram amounts come out as a small number of units, so a 0.3 mL (30 unit) syringe is usually the easiest to read accurately.
Step 4: Enter the amount in mcg. The presets are shortcuts, not recommendations.
With the defaults shown, a 2 mg vial mixed with 2 mL is 1 mg/mL (1,000 mcg/mL), so each unit holds 10 mcg and 100 mcg is 10 units. A 5 mg vial in the same 2 mL is 2.5 mg/mL, and 100 mcg drops to 4 units.
Using a CJC-1295 and Ipamorelin Blend
CJC-1295 is commonly sold in one vial with ipamorelin. Tick Blend next to the vial amount and enter each peptide with its mg, such as CJC-1295 5 mg and ipamorelin 5 mg. Use Dose Based On to choose whether your amount refers to the CJC-1295, the ipamorelin, or the whole blend. The result lists how much of each peptide is in the volume you draw.
CJC-1295 Units to mcg Conversion Table
100 units on a U-100 syringe is always 1 mL. How many micrograms that holds depends on your concentration.
| Syringe units | Volume | At 1 mg/mL | At 2 mg/mL | At 2.5 mg/mL |
|---|---|---|---|---|
| 1 unit | 0.01 mL | 10 mcg | 20 mcg | 25 mcg |
| 5 units | 0.05 mL | 50 mcg | 100 mcg | 125 mcg |
| 10 units | 0.1 mL | 100 mcg | 200 mcg | 250 mcg |
| 15 units | 0.15 mL | 150 mcg | 300 mcg | 375 mcg |
| 20 units | 0.2 mL | 200 mcg | 400 mcg | 500 mcg |
| 30 units | 0.3 mL | 300 mcg | 600 mcg | 750 mcg |
Our peptide syringe units guide shows how to read each syringe size. There's also a dedicated ipamorelin calculator, the general peptide calculator for anything else, and PeptideKit to log each dose and remind you when it's due.
Frequently Asked Questions
How do I calculate CJC-1295 units?
Divide the vial's mcg (mg × 1,000) by the mL of water added to get mcg/mL. Divide the amount you need by that concentration, then multiply by 100 for U-100 syringe units.
How many units is 100 mcg of CJC-1295?
At 1 mg/mL (2 mg in 2 mL), 100 mcg is 10 units. At 2 mg/mL, it's 5 units. At 2.5 mg/mL, it's 4 units. This is a conversion example, not a suggested dose.
Does the calculator work for CJC-1295 with DAC?
Yes. The math is identical for both versions, because it only depends on the mg in the vial and the water added. What differs is how the peptide acts in the body, which is a question for a clinician, not a calculator.
What is the right CJC-1295 dosage?
There's no FDA-reviewed dosing because CJC-1295 isn't an approved drug. Speak with a licensed clinician before using it.
Can a pharmacy compound CJC-1295?
An FDA advisory committee voted against adding it to the 503A bulk substances list in December 2024, and it isn't a component of any FDA-approved drug. Products sold as CJC-1295 online are not prescriptions.
Always consult with qualified healthcare professionals before starting any peptide therapy protocol. This information is for educational purposes only and does not constitute medical advice.