CJC-1295 & Ipamorelin Dosage Chart: Vial Size to Units

A CJC-1295/Ipamorelin vial's mg amount doesn't tell you how many units to draw on its own. The water volume added sets the concentration, and concentration is what converts a target dose into a syringe reading. This chart lays out that math for the vial sizes CJC-1295/Ipamorelin blends are commonly supplied in, plus the separate-vial case. It is a reference for research and educational purposes only and is not medical advice.

Blend vials vs. separate vials

CJC-1295 and Ipamorelin reach researchers in one of two formats, and a dosage chart reads differently for each:

• Pre-blended vial — the supplier combines both peptides into one vial, commonly at a 1:1 ratio by weight (5 mg CJC-1295 / 5 mg Ipamorelin, labeled "5 mg/5 mg" for 10 mg total). One water volume sets the concentration for the blend as a whole, and one draw pulls both peptides at once.
• Separate vials — each peptide is reconstituted on its own and can use a different water volume. The two draws are then combined in a syringe or injected separately.

Check the vial label before reading any chart against it. A "5 mg/5 mg" blend vial holds 10 mg total, not 5 mg — that distinction changes every number that follows.

Reference concentrations

The two blend vial sizes referenced most often, along with the water volume that produces a round concentration:

Blend vial (total mass)	Bacteriostatic water	Total concentration	Per-peptide concentration
4 mg (2 mg / 2 mg)	2 mL	2 mg/mL	1 mg/mL each
10 mg (5 mg / 5 mg)	2 mL	5 mg/mL	2.5 mg/mL each
20 mg (10 mg / 10 mg)	4 mL	5 mg/mL	2.5 mg/mL each

The 20 mg vial uses double the water of the 10 mg vial to hold the same 5 mg/mL concentration — only the number of total doses the vial supplies changes, not the units per dose. For the reconstitution steps themselves, see the CJC-1295 & Ipamorelin dosage calculator guide.

Dosage chart at 5 mg/mL (10 mg or 20 mg vial)

Each row assumes the 5 mg/mL reference concentration above and shows the resulting draw on a U-100 insulin syringe (100 units per mL):

Target dose (blend)	Volume	Units
0.25 mg	0.05 mL	5 units
0.5 mg	0.1 mL	10 units
1 mg	0.2 mL	20 units
2 mg	0.4 mL	40 units

A 1 mg dose landing on an exact 20-unit mark is part of why 5 mg/mL is a common reference concentration for this blend — it reads cleanly on any U-100 syringe barrel.

Dosage chart at 2 mg/mL (4 mg vial)

The smaller 4 mg blend vial, reconstituted with 2 mL of water, sits at a lower 2 mg/mL concentration:

Target dose (blend)	Volume	Units
0.2 mg	0.1 mL	10 units
0.4 mg	0.2 mL	20 units
0.6 mg	0.3 mL	30 units

Neither concentration is more correct than the other. A 4 mg vial reconstituted this way empties faster if a research protocol calls for a full 1 mg blend dose, since it only holds 4 mg total against the 10 mg or 20 mg vial's larger supply.

Reading the chart against a specific vial

Worked example. A 20 mg blend vial (10 mg CJC-1295 / 10 mg Ipamorelin) mixed with 4 mL of bacteriostatic water is 20 ÷ 4 = 5 mg/mL — matching the reference table above. A 1.5 mg target dose from that vial is 1.5 ÷ 5 = 0.3 mL, which reads as 0.3 × 100 = 30 units on a U-100 syringe. The same 1.5 mg dose from a 10 mg vial mixed with 2 mL — also 5 mg/mL — is also 30 units. What changes between the two vials is total doses on hand, not the unit reading for any single draw.

If your water volume differs from what a chart assumes, recalculate rather than reuse a number from the tables above. The peptide reconstitution calculator solves for exact units at any vial size, water volume, and target dose, and its reverse mode finds a water volume that lands a chosen dose on a round unit mark.

When the two peptides come in separate vials

A separate 5 mg CJC-1295 vial and a separate 5 mg Ipamorelin vial each get their own water volume and their own chart. Reconstituted with 2 mL each, both sit at 2.5 mg/mL — the same per-peptide concentration as the 10 mg blend vial above, since a 1:1 blend splits evenly. A 0.5 mg CJC-1295 dose at 2.5 mg/mL is 0.5 ÷ 2.5 = 0.2 mL, or 20 units, and the same math applies independently to the Ipamorelin vial. Running separate vials lets the ratio between the two peptides be adjusted, which a pre-blended vial does not allow. For the full water-ratio breakdown across both formats, see CJC-1295 & Ipamorelin bac water ratio.

Common mistakes

• Assuming vial size sets the dose. It sets the total mg available across the vial's life. Water volume sets concentration, and concentration sets units per dose.
• Reading a blend label as per-peptide when it's total mass, or the reverse. A "5 mg/5 mg" vial is 10 mg total, not 5 mg.
• Reusing a unit count across a different water volume. A number from either chart above is only valid at the exact concentration it assumes — 5 mg/mL or 2 mg/mL. A different water volume changes every figure downstream.
• Mixing up mg and mcg. CJC-1295 and Ipamorelin doses are described in either unit depending on the source; 1 mg equals 1000 mcg.
• Shaking instead of swirling during reconstitution. See how to reconstitute peptides for the mixing steps.

Use the calculator

Enter your CJC-1295/Ipamorelin vial size, water volume, and target dose into the free peptide calculator for an exact unit count at any concentration, not just the round numbers in the charts above. For the reconstitution walkthrough specific to this blend, see the CJC-1295 & Ipamorelin dosage calculator guide.