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[Growth hormone · CJC-1295 (no DAC) · 2 mg vial]

CJC-1295 (no DAC) 2 mg reconstitution: how much water and how many units

Water volume chart · Syringe units · Draws per vial

Short answer: 2 mL of bacteriostatic water in a 2 mg CJC-1295 (no DAC) vial makes 1 mg/mL. On a U-100 insulin syringe (1 mL = 100 units), every 10 units then holds 100 mcg. More water gives a weaker solution and a bigger draw for the same amount; the amount in the vial stays 2 mg.

Water volume chart for a 2 mg vial

2 mg CJC-1295 (no DAC) vial, U-100 insulin syringe.
Water addedConcentrationPer 10 unitsPer 1 unit
1 mL2 mg/mL200 mcg20 mcg
2 mL1 mg/mL100 mcg10 mcg
3 mL666.7 mcg/mL66.667 mcg6.667 mcg
5 mL400 mcg/mL40 mcg4 mcg

Syringe units by amount

The amounts below are examples to show the conversion, not doses. How much to take is a decision for you and your prescriber.

Units on a U-100 syringe from a 2 mg vial.
Water added50 mcg100 mcg200 mcg
1 mL2.5 units5 units10 units
2 mL5 units10 units20 units
3 mL7.5 units15 units30 units
5 mL12.5 units25 units50 units

A 2 mg vial holds 40 draws of 50 mcg, 20 draws of 100 mcg, 10 draws of 200 mcg, no matter how much water you add.

The math

  1. Concentration. 2 mg ÷ 2 mL = 1 mg/mL
  2. Volume to draw. amount ÷ 1 mg/mL = mL
  3. Syringe units. mL × 100 = units

For a different water volume or amount, the free peptide reconstitution calculator works backwards from the amount you want and suggests a water volume that lands on a clean syringe mark.

Other CJC-1295 (no DAC) vial sizes

CJC-1295 (no DAC) 5 mg

Half-life, time to peak and sources are on the main CJC-1295 (no DAC) guide.

Frequently asked questions

How much bacteriostatic water do I add to a 2 mg CJC-1295 (no DAC) vial?+
There is no single right amount. More water makes each draw bigger and easier to measure; less water keeps the volume small. With 2 mL, a 2 mg vial is 1 mg/mL, so every 10 units on a U-100 insulin syringe holds 100 mcg. With 1 mL it is 2 mg/mL (200 mcg per 10 units). With 3 mL it is 666.7 mcg/mL (66.667 mcg per 10 units). With 5 mL it is 400 mcg/mL (40 mcg per 10 units).
How many units is 100 mcg of CJC-1295 (no DAC) from a 2 mg vial?+
With 2 mL of water the vial is 1 mg/mL, so 100 mcg is 0.1 mL, or 10 units on a U-100 syringe. With a different water volume the units change but the amount does not. The amount is an example for the math, not a recommendation.
How many 100 mcg draws are in a 2 mg CJC-1295 (no DAC) vial?+
20 (2 mg ÷ 100 mcg), whatever volume of water you add. In practice a little is lost to the syringe dead space and the last drops in the vial.

CJC-1295 (no DAC) guide · All compound guides · Reconstitution calculator