CJC-1295 reconstitution calculator.
This is the no-DAC form, also sold as Mod-GRF 1-29, and it is the one with a half-life measured in minutes rather than days. Vials are usually 2 mg, which is small enough that water volume choice dominates the arithmetic.
Reference range often cited for CJC-1295: 100–300 mcg, shown for orientation only, not a recommendation. Enter your own target below. Read the evidence →
Each unit on a 100u · 1.0 mL syringe ≈ 10 mcg of this solution.
Show the math
More water → lower concentration → more units for the same amount.
What changes the math for CJC-1295.
- 2 mg in 2 mL is exactly 1,000 mcg/mL, which is why that pairing is so commonly quoted: 100 mcg lands on 10 units with no awkward decimals.
- Some batches do not go fully into solution in bacteriostatic water alone. Dilute acetic acid first, then bacteriostatic water to volume, is the documented workaround, and it does not change the final concentration arithmetic.
- Do not carry numbers over from CJC-1295 DAC. It is a different molecule with a different half-life, and mixing up the two is the most common error on this compound.
Formats and worked examples.
How CJC-1295 is actually administered, with the concentration arithmetic written out. Amounts in these tables are illustrative examples of the math, never a recommendation.
CJC-1295: research formats
Choose the format you are researching to see route-specific notes.
Standard research format. Short half-life (~30 min) drives one discrete GH pulse per injection.
CJC-1295 no-DAC (also sold as Mod-GRF 1-29) is typically sold as a 2 mg lyophilized vial. Reconstitution with 2.0 mL bacteriostatic water gives a 1,000 mcg/mL (1 mg/mL) solution. Because the half-life is roughly 30 minutes, timing relative to sleep or training is discussed in most research contexts.
A 2 mg vial yields 10–20 injections at the low-to-mid range, depending on frequency. Refrigerated in BAC water, a reconstituted vial is typically used within 28–30 days.
CJC-1295 no-DAC is not acutely soluble in BAC water alone for some batches. If the powder doesn't fully dissolve, try 0.6% acetic acid first, then add BAC water to volume.
FAQ.
Is CJC-1295 the same as Mod-GRF 1-29?
For the no-DAC form, yes, they are the same peptide sold under two names. CJC-1295 DAC is a separate molecule with a drug affinity complex attached, which extends the half-life from around half an hour to several days.
What if the powder will not dissolve?
Some lots need dilute acetic acid to go into solution, added first and then made up to volume with bacteriostatic water. The total volume is what sets the concentration, so the arithmetic above is unchanged.
Why is 2 mg in 2 mL quoted so often?
Because it produces 1,000 mcg/mL, where 1 unit is 10 mcg and every round target converts to a round unit count. It is a convenience of the arithmetic, not a recommendation.
This page is arithmetic on numbers you enter. It does not recommend an amount of CJC-1295, and nothing here is medical advice. For what the published evidence actually supports, read the CJC-1295 profile, and for regulatory status see is CJC-1295 legal. Reviewed June 1, 2026.
Different question? The general reconstitution calculator covers every compound on the site, the blend calculator handles multi-peptide stacks, and vial longevity turns a vial into weeks of supply.
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