What is CJC-1295 with DAC?
If you are looking up a CJC-1295 with DAC dose, what you usually need first is arithmetic: how the milligrams printed on the vial translate into mL and syringe units once BAC water is added. This page handles that math for DAC vials specifically.
CJC-1295 with DAC is a synthetic analog of growth hormone–releasing hormone (GHRH) developed by the Canadian company ConjuChem. The peptide portion is a modified GHRH fragment; the DAC, or Drug Affinity Complex, is a reactive chemical group attached to it. Once in circulation, the DAC is designed to bond to albumin, the most abundant blood protein, which protects the peptide from rapid clearance. That is why published research describes CJC-1295 with DAC as long-acting, and why it is studied and discussed differently from the version without DAC.
CJC-1295 DAC vs no DAC: why the label matters
The “cjc 1295 dac vs no dac” question comes up constantly because sellers use the names loosely. Here is how the two compare on the points that matter for a calculator page.
| Point | CJC-1295 with DAC | CJC-1295 no DAC |
|---|---|---|
| Also sold as | CJC-1295 DAC | Mod GRF (1-29) |
| Structure | GHRH analog plus albumin-binding DAC | GHRH analog only |
| Described in research as | Long-acting | Short-acting |
| Calculator math per mg | Identical | Identical |
| Interchangeable? | No: a different molecule | No: a different molecule |
The arithmetic never cares which one you have, because a milligram is a milligram. The product does. If your label does not say “DAC,” use the CJC-1295 no DAC calculator instead.
How much BAC water for a CJC-1295 with DAC vial?
No volume is correct by default. Water only sets concentration: less water means more peptide per syringe unit, more water means less per unit and finer steps. The chart covers the vial sizes sellers most often list for CJC-1295 with DAC, including the 10 mg size, across a wider range of water volumes.
| BAC water | 2 mg vial | 5 mg vial | 10 mg vial |
|---|---|---|---|
| 1 mL | 20 mcg/unit 2 mg/mL | 50 mcg/unit 5 mg/mL | 100 mcg/unit 10 mg/mL |
| 2 mL | 10 mcg/unit 1 mg/mL | 25 mcg/unit 2.5 mg/mL | 50 mcg/unit 5 mg/mL |
| 3 mL | 6.67 mcg/unit 0.667 mg/mL | 16.67 mcg/unit 1.667 mg/mL | 33.33 mcg/unit 3.333 mg/mL |
| 5 mL | 4 mcg/unit 0.4 mg/mL | 10 mcg/unit 1 mg/mL | 20 mcg/unit 2 mg/mL |
Each cell shows mcg per unit on a U-100 syringe (100 units = 1 mL) and the resulting concentration.
Whatever volume the product labeling specifies is the one that applies. Larger water volumes also mean the BAC water vial empties faster, which the guide to bacteriostatic water vial sizes helps you plan around.
CJC-1295 with DAC 10mg reconstitution: worked example
Three steps drive every result: concentration equals vial mg divided by water mL; volume equals the amount divided by concentration; units equal mL multiplied by 100. Here is a CJC-1295 DAC 10 mg vial mixed with a small volume, for example, if the amount you already have is written down in micrograms:
The math: 10 mg ÷ 2 mL = 5 mg/mL (5,000 mcg/mL), which is 50 mcg per unit. 200 mcg ÷ 5,000 mcg/mL = 0.04 mL = 4 units on a U-100 syringe.
Now the same vial and the same amount with more water added:
The math: 10 mg ÷ 5 mL = 2 mg/mL (2,000 mcg/mL), which is 20 mcg per unit. 200 mcg ÷ 2,000 mcg/mL = 0.1 mL = 10 units on a U-100 syringe.
The amount did not change; only the concentration did, so the syringe mark moved. If your amount is written in mg rather than mcg, convert first using the mg to mcg conversion guide, or switch the unit in the calculator.
CJC-1295 with DAC dose calculator: what the numbers mean
A CJC-1295 with DAC dose calculator can only do one honest job: convert an amount you already have, from product labeling, a protocol you are reviewing, or a qualified professional, into mL and U-100 syringe units. This page does not suggest an amount, a frequency or a use, and the long-acting description of DAC in research literature is not a schedule.
Enter the vial mg exactly as printed, the water volume you are checking, and your amount. Then compare the result with the chart row for the same volume. The guide to checking calculator math by hand shows how to confirm it independently.
Supplier reconstitution notes for CJC-1295 DAC
Supplier instructions for CJC-1295 with DAC are generally short. Some suppliers specify bacteriostatic water as the diluent and describe letting it run slowly down the vial wall, then swirling gently until the powder dissolves. Some specify refrigeration after mixing and give their own use-by window. The BAC water vial has its own clock: an opened multi-dose vial is commonly discarded within 28 days unless the manufacturer specifies otherwise, as the BAC water storage and shelf-life guide explains.
Sterility, handling and administration belong to the product labeling and a qualified professional.
Regulatory status of CJC-1295 with DAC
CJC-1295 with DAC is not an FDA-approved drug. It was developed and studied in small published human trials in the mid-2000s but never reached approval, and vials sold online today are labeled for research use. There is no approved labeling to compare a research vial against, so the mg, lot and expiry on your own vial are the only starting point, and a correct calculation cannot confirm identity, purity or sterility.
CJC-1295 with DAC FAQ
What does DAC stand for in CJC-1295?
DAC stands for Drug Affinity Complex, a chemical group attached to the peptide that is designed to bond to albumin in the blood. It is the reason CJC-1295 with DAC is described as long-acting.
Is CJC-1295 with DAC the same as CJC-1295 no DAC?
No. They share a modified GHRH peptide core, but the DAC version carries the albumin-binding group and is a different molecule. Check the label before using either calculator.
How much BAC water goes in a CJC-1295 DAC 10 mg vial?
The calculator does not pick a volume. The chart shows the amount per unit for several water volumes; the product labeling decides which one applies.
Does this page give a CJC-1295 with DAC dose?
No. It converts an amount you already have into mL and U-100 syringe units. It does not recommend an amount, a frequency or a use.
Why does the same amount show a different number of units?
Units depend on concentration. Adding more water to the same vial lowers the concentration, so the same amount takes up more liquid and more units.