Reconstitution & Dosing

How to Reconstitute CJC-1295 / Ipamorelin (Blend)

A neutral, step-by-step reference for reconstituting a CJC-1295/Ipamorelin blend vial and converting the result into exact insulin syringe units.

Michael Manevich5 min read

CJC-1295 and Ipamorelin are research peptides commonly sold as a freeze-dried blend in one vial. Before any unit math works, the vial has to be reconstituted, which means adding bacteriostatic water to dissolve the powder into a liquid of known strength. This is a lab handling reference for research compounds, not medical guidance. It walks through how much water to add, how that sets the blend concentration, and how to turn that into the exact insulin syringe units you feed into the CJC-1295 / Ipamorelin blend calculator.

One idea drives everything: the milligrams in the vial never change. Water does not add or remove peptide. It only sets the concentration, which sets how many units sit on the syringe for a given dose. More water means a more dilute mix and more units to draw. Less water means a stronger mix and fewer units.

Read the blend label first

A blend vial lists each peptide separately. A common label is 5mg CJC-1295 plus 5mg Ipamorelin, which is 10mg of total peptide in the vial. Some vials are labeled by total mass, like a 10mg blend, and some run other ratios. The reconstitution math uses the total peptide mass in the vial. The per-component split only matters when you want to know how much of each peptide a dose carries.

What you need on hand

  • The CJC-1295 / Ipamorelin blend vial, with the mg of each peptide noted from the label
  • Bacteriostatic water, the standard diluent. See bacteriostatic water vs sterile water for why the bacteriostatic version is typical for multi-draw vials
  • A syringe to transfer the water, plus U-100 insulin syringes for later draws
  • Alcohol swabs and a clean, flat surface

The mixing steps

  1. Let the vial and the water reach room temperature and swab both rubber stoppers with alcohol.
  2. Draw your chosen volume of bacteriostatic water into the transfer syringe (volumes below).
  3. Insert the needle at an angle and let the water run slowly down the inner glass wall, not directly onto the powder.
  4. Do not shake. Swirl gently or let it sit until the solution turns clear. Shaking can stress the peptide.
  5. Refrigerate the reconstituted vial. See how to store peptides for handling after mixing.

Choosing a water volume

There is no single correct water volume. It is a choice that sets your concentration, and concentration is simply total peptide mg divided by total mL. These are common, easy-to-read pairings for a 5mg + 5mg blend (10mg total peptide):

  • 1mL water gives 10mg/mL total, which is 100mcg per unit
  • 2mL water gives 5mg/mL total, which is 50mcg per unit
  • 2.5mL water gives 4mg/mL total, which is 40mcg per unit

For a deeper look at picking a volume that lands your dose on a clean unit mark, see how much bacteriostatic water to add and the reconstitution calculator.

Turning concentration into syringe units

On a U-100 insulin syringe, 100 units equals 1mL, so 1 unit equals 0.01mL. The reference formula is: units = (dose in mg divided by total concentration in mg/mL) times 100. Because a blend is dosed by total peptide, use the total mg/mL, not one component.

Worked example with a 5mg + 5mg vial mixed in 2.5mL, giving 10mg / 2.5mL = 4mg/mL total. A 200mcg reference dose is 0.2mg, so (0.2 / 4) x 100 = 5 units. A 300mcg dose is 0.3mg, so (0.3 / 4) x 100 = 7.5 units. At 4mg/mL each unit carries 40mcg of total blend, split 20mcg CJC-1295 and 20mcg Ipamorelin at a 1:1 ratio.

Change the water and the units change. Mix the same vial in 1mL instead and you get 10mg/mL, so each unit carries 100mcg and a 200mcg dose is only 2 units. That sensitivity is why logging the water volume matters. The mg to units calculator converts any concentration, and the peptide dosage calculator covers the same math across compounds.

Full worked example, end to end

A 5mg + 5mg blend vial (10mg total), 2mL of water, targeting a 250mcg reference dose:

  • Concentration: 10mg / 2mL = 5mg/mL total = 50mcg per unit
  • Dose in units: 250mcg / 50 = 5 units
  • Doses per vial: 10000mcg / 250 = 40 doses

Plug your own vial mg, water volume, and target into the CJC-1295 / Ipamorelin blend calculator to see the unit mark and dose count without doing the arithmetic by hand. For the standard ranges and cycle framing, the CJC-1295 / Ipamorelin dosage guide covers the numbers. To log each draw and track vial life, the Stackr app keeps the running count for you.

Common reconstitution mistakes

  • Mixing the per-component mg with the total mg when setting concentration
  • Spraying water straight onto the powder under pressure
  • Shaking the vial instead of swirling
  • Forgetting to log the water amount, which makes every later unit reading guesswork
  • Assuming a blend and a single-peptide vial of the same label draw the same units

For the general procedure across any peptide, see how to reconstitute peptides. CJC-1295 and Ipamorelin are research compounds and are not approved for human consumption. Any decision about use belongs with a licensed clinician. Read the full disclaimer.

Try the CJC-1295 / Ipamorelin calculator

Open the calculator

Frequently asked questions

How much bacteriostatic water do I add to a CJC-1295/Ipamorelin blend vial?
Any volume works mathematically. The choice sets your concentration, not the amount of peptide. For a 5mg + 5mg vial (10mg total), 2mL gives 5mg/mL and 2.5mL gives 4mg/mL. Pick a volume that lands your dose on a clean unit mark.
Do I use the total mg or each component when reconstituting the blend?
Use the total peptide mass for concentration. A 5mg + 5mg vial holds 10mg total, so 10mg divided by your water volume gives the mg/mL. The per-component split only tells you how much of each peptide a single dose carries.
How many units is a 200mcg or 300mcg dose of the blend?
It depends on concentration. At 4mg/mL (a 10mg vial in 2.5mL), 200mcg is 5 units and 300mcg is 7.5 units on a U-100 syringe. Change the water volume and the unit count changes, so confirm with the blend calculator.
Does adding more water lower the blend strength?
It lowers the concentration, not the total milligrams. The same peptide mass spreads through more liquid, so each dose pulls more units onto the syringe. The vial still holds the same total mg either way.
Should I shake the blend vial to mix it faster?
No. Direct the water down the glass wall and swirl gently or let it sit. Shaking can stress the peptide. The mix should turn clear with no floating particles before use.

Keep this calculation in your pocket

Stackr saves every vial you reconstitute, tracks doses remaining, and reminds you to reorder before you run out. The reference app for people who take their protocol seriously.

Educational tool only, not medical advice. Peptides are research chemicals, not for human consumption. Full disclaimer.