CJC-1295 with DAC Reconstitution & Dosage Calculator
This free CJC-1295 with DAC calculator turns your vial size, the bacteriostatic water you add, and your target amount into a concentration, a draw volume, and the exact units on a U-100 insulin syringe. The DAC — Drug Affinity Complex — binds the peptide to serum albumin and stretches its half-life from minutes to days, which is the entire difference between this and the no-DAC form.
CJC-1295 with DAC reconstitution calculator
Syringe
U-100 insulinPeptide in vial
Target amount
Bacteriostatic water
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Quick summary
- Converts vial size (mg), bacteriostatic water (mL), and a target amount into concentration, draw volume, and U-100 units.
- Reference math for the 5 mg vial size.
- Educational research and measurement tool only — it does not diagnose, treat, or recommend an amount.
What this CJC-1295 with DAC calculator does
This calculator does one job well: it turns your vial size, the amount of bacteriostatic water you add, and your target amount into a concentration (mg/mL), a draw volume (mL), and the matching units on a U-100 insulin syringe. Change any input and the result updates instantly.
CJC-1295 with DAC ships as a freeze-dried powder. Before it can be measured into a syringe it has to be reconstituted — dissolved in bacteriostatic water. How much water you add sets the concentration, and the concentration sets how many units each amount works out to. The presets above cover the most common CJC-1295 with DAC vial setups; use the custom fields for anything else.
How to use the CJC-1295 with DAC calculator
Pick your syringe
Choose the U-100 insulin syringe you'll draw with. Smaller syringes (0.3 mL / 30u) have finer lines, which helps when the draw is small.
Enter your vial and water
Set the milligrams in your CJC-1295 with DAC vial and the bacteriostatic water you added. Together these set the concentration.
Set your target amount
Toggle mg or mcg and pick (or type) the amount you're measuring for. The calculator does the conversion for you.
Read the draw
The result panel shows concentration, draw volume, and the exact U-100 units to pull, plus how many doses your vial contains.
CJC-1295 with DAC reconstitution math, explained
The math is short. Concentration = vial size ÷ bacteriostatic water. Draw volume = target amount ÷ concentration. Units = draw volume × 100 (a U-100 syringe reads 100 units per mL). The table below shows common CJC-1295 with DAC setups and the units for a 1 mg amount at each.
| Vial size | Bac water | Concentration | Units per 1 mg |
|---|---|---|---|
| 5 mg | 1.0 mL | 5 mg/mL | 20 units |
| 5 mg | 2.0 mL | 2.5 mg/mL | 40 units |
| 5 mg | 2.5 mL | 2 mg/mL | 50 units |
| 5 mg | 3.0 mL | 1.67 mg/mL | 60 units |
| 2 mg | 1.0 mL | 2 mg/mL | 50 units |
CJC-1295 with DAC amount-to-units reference
How common amounts convert to U-100 syringe units at two example concentrations. These are arithmetic conversions for reference, not a recommendation of any amount.
| Amount | Volume (mL) | U-100 units |
|---|---|---|
| 0.5 mg (500 mcg) | 0.2 mL | 20 units |
| 1 mg (1000 mcg) | 0.4 mL | 40 units |
| 2 mg (2000 mcg) | 0.8 mL | 80 units |
| Amount | Volume (mL) | U-100 units |
|---|---|---|
| 0.5 mg (500 mcg) | 0.1 mL | 10 units |
| 1 mg (1000 mcg) | 0.2 mL | 20 units |
| 2 mg (2000 mcg) | 0.4 mL | 40 units |
Mixing, color & storage tips
DAC versus no-DAC is not a detail
CJC-1295 with DAC has a half-life of roughly a week; the no-DAC form clears in about half an hour. They are sold under confusingly similar names and are pharmacologically different compounds. Confirm which one your vial actually contains before doing anything with these numbers.
A long tail of activity
The phase 1 work found IGF-1 elevated for nine to eleven days after a single dose. That duration is the reason weekly dosing is even discussed for this compound, and it also means effects accumulate across doses in a way short-acting peptides do not.
Mixing without foam
Add the water slowly against the inside wall and swirl gently until clear. Do not shake.
Storage
Keep the dry powder cold and dark. Refrigerate once reconstituted, keep it out of light, and plan around a limited window. Do not freeze a mixed vial.
CJC-1295 with DAC supplies checklist
A simple reconstitution shopping list. Confirm vial size and batch documentation before you buy.

CJC-1295 with DAC
- Batch COA on every vial
- Third-party purity tested
- U.S. fulfillment, discreet shipping
CJC-1295 with DAC — frequently asked questions
What does this CJC-1295 with DAC calculator tell me?
It converts your vial size, bacteriostatic water volume, and target amount into concentration in mg/mL, draw volume in mL, and U-100 syringe units. It is a measurement tool, not a recommendation.
Is the CJC-1295 calculator free?
Yes — free, browser-based, and no account is required.
What is the difference between CJC-1295 with and without DAC?
The Drug Affinity Complex binds the peptide covalently to serum albumin, extending its half-life from roughly half an hour to about a week. That is a difference of two orders of magnitude and it changes everything about how the compound behaves.
How many units is 1 mg of CJC-1295 with DAC?
At 2.5 mg/mL it is 40 units (0.4 mL). At 5 mg/mL it is 20 units. Units always depend on your exact concentration.
Is this medical advice?
No. This page and calculator are for education and research planning only. Products referenced are sold strictly as research chemicals and are not for human or veterinary use.
Sources & further reading
Related calculators
CJC-1295 with DAC protocol & evidence
Dosing for CJC-1295 with DAC comes from published human trials. The protocol page carries the schedule that was actually administered, with the citation.

