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Comparison

CJC-1295 vs Ipamorelin

The classic GH-secretagogue pairing — a GHRH analog next to a GHRP, different pulse mechanics, often logged as a stack.

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Field
CJC-1295
Ipamorelin
Category
GH Secretagogue
GH Secretagogue
Common alias
—
—
Example vial
2 mg + 2 mL BAC water
2 mg + 2 mL BAC water
Concentration
1.00 mg/mL
1.00 mg/mL
Example dose
0.1 mcg
0.2 mcg
Doses per week
7× / week
7× / week
Doses per vial (rounded down)
20
10
Approx vial duration
2.9 weeks
1.4 weeks

CJC-1295 and Ipamorelin both show up in the same conversations, but they aren't interchangeable. The table above lays the vial math side by side so you can see how concentration, doses-per-vial, and weekly cadence actually compare. The sections below walk through what each one is, how each is studied, and how each shows up in a tracked log — in plain English, no recommendations.

Tiebreakers

Where CJC-1295 and Ipamorelin actually diverge

CJC-1295Ipamorelin
Cadence7/wk7/wk
Concentration on example1.00 mg/mL1.00 mg/mL
Math weeks per vial2.91.4
CategoryGH SecretagogueGH Secretagogue

Bolded values are the higher of the two on numeric rows. Same-value rows aren't a verdict — they're shared properties.

CJC-1295 vs Ipamorelin: the actual decision

This is the most-stacked GH-secretagogue pairing in research-peptide logs, and the reason is mechanism complementarity. CJC-1295 is a GHRH analog — it amplifies the body's own growth-hormone-releasing-hormone signal. Ipamorelin is a GHRP — a ghrelin-mimetic that triggers a GH pulse from the pituitary directly. Stacked, they push from both ends of the same pathway. Compared head-to-head, they are doing structurally different jobs even when the downstream effect (a GH pulse) looks similar in a log.

Half-life is the cadence-defining difference. CJC-1295 in its DAC form has a half-life measured in days, which lets it be administered as little as twice a week. Ipamorelin's half-life is on the order of two hours, which is why the standard protocol is two-to-three administrations a day. The same vial in the two molecules empties at completely different rates as a result — a 5 mg ipamorelin vial dosed three times daily empties in a couple of weeks, while a 5 mg CJC-1295 vial dosed twice weekly stretches across months.

Mechanism, cadence, and what shows up in a log

Side-effect profile reads quite differently in logs. Ipamorelin is the most-selected member of the GHRP family precisely because it does not meaningfully move cortisol, prolactin, or appetite the way GHRP-2 and GHRP-6 do — that selectivity is the reason it gets paired with a GHRH analog rather than another GHRP. CJC-1295's profile in logs is dominated by the long half-life: very few injection-site events because the cadence is sparse, but any side-effect signal sticks around for days rather than hours.

For the stacked log, the recommended (sorry, common) workflow is parallel timelines rather than a merged single timeline. Ipamorelin gets its own field with three entries a day; CJC-1295 gets its own field with two entries a week. The mg-to-units calculator handles both molecules once their vial concentrations are set, and the vial-duration calculator linked below shows the very different rates at which each vial empties at typical protocol cadences.

CJC-1295 vs Ipamorelin: the numbers, side by side

Start with what actually goes into a syringe. The example CJC-1295 vial on this site reconstitutes 2 mg in 2 mL of bacteriostatic water — about 1.00 mg per mL, which yields roughly 20 doses at the 100 mcg example and lasts about 2.9 weeks at 7 doses per week. The example Ipamorelin vial reconstitutes 2 mg in 2 mL (1.00 mg/mL), which yields about 10 doses at 200 mcg and stretches roughly 1.4 weeks at 7 doses per week. Those numbers are the starting point most people forget to write down, and they decide everything downstream — refill timing, unit count on the syringe barrel, and whether a 30-mL bac-water bottle stretches across one vial or two.

Category context matters too. Both CJC-1295 and Ipamorelin sit in the GH Secretagogue bucket, so the head-to-head questions readers bring here are usually about cadence, titration step size, and which of the two molecules logs more cleanly inside a longer protocol rather than a from-scratch category choice. Cadence helps frame the rest: CJC-1295 is logged about 7× per week in the example schedule, Ipamorelin about 7×.

The single most-asked-about mistake on each page is worth surfacing here, because they rarely overlap. On the CJC-1295 side: Applying a daily dosing frequency appropriate for the no-DAC variant to the long-acting DAC variant. On the Ipamorelin side: Administering doses at inconsistent times of day, which compromises the ability to observe long-term trends related to its selective action. Both are the kind of thing a tracked log catches early and an untracked routine catches late.

Top CJC-1295 question
What is the functional difference between CJC-1295 with DAC and without DAC?

The primary difference is the half-life and resulting dosing schedule. The DAC (Drug Affinity Complex) allows the peptide to bind to albumin in the blood, extending its half-life to about 6-8 days and enabling weekly or twice-weekly administration. The no-DAC version has a half-life of only about 30 minutes, requiring daily or multiple daily administrations to be studied.

Top Ipamorelin question
What is the primary distinction between Ipamorelin and GHRP-6?

The defining distinction is selectivity. Ipamorelin was developed specifically to stimulate growth hormone release with high potency while avoiding the significant increases in appetite, cortisol, and prolactin that are characteristic of older secretagogues like GHRP-6. This targeted action results from its refined molecular structure and specific binding profile.

The calculator pages linked below let you swap your own vial size, diluent volume, and dose into the same math — these example numbers exist so the comparison renders with concrete figures instead of placeholders.

Frequently asked questions about CJC-1295 vs Ipamorelin

What is the functional difference between CJC-1295 with DAC and without DAC?
The primary difference is the half-life and resulting dosing schedule. The DAC (Drug Affinity Complex) allows the peptide to bind to albumin in the blood, extending its half-life to about 6-8 days and enabling weekly or twice-weekly administration. The no-DAC version has a half-life of only about 30 minutes, requiring daily or multiple daily administrations to be studied.
Why is CJC-1295 without DAC frequently paired with ipamorelin in research?
This combination creates a synergistic effect by stimulating the pituitary gland through two separate pathways. CJC-1295 without DAC is a GHRH analog that stimulates the GHRH receptor, while ipamorelin is a ghrelin mimetic that stimulates the ghrelin receptor (GHSR). Activating both receptors at once results in a much larger release of growth hormone than stimulating either one alone.
For a 2 mg vial reconstituted with 2 mL of water, how many units is a 100 mcg dose?
Reconstituting a 2 mg (2,000 mcg) vial with 2 mL of fluid yields a concentration of 1,000 mcg per mL. A 100 mcg dose is therefore equal to 0.1 mL of this solution. On a standard U-100 insulin syringe, 0.1 mL measures as exactly 10 units.
What is the primary distinction between Ipamorelin and GHRP-6?
The defining distinction is selectivity. Ipamorelin was developed specifically to stimulate growth hormone release with high potency while avoiding the significant increases in appetite, cortisol, and prolactin that are characteristic of older secretagogues like GHRP-6. This targeted action results from its refined molecular structure and specific binding profile.
Why is Ipamorelin often studied in combination with CJC-1295 without DAC?
This combination is studied because it targets two separate pituitary receptors to synergistically amplify GH release. Ipamorelin acts on the ghrelin receptor while CJC-1295 (no DAC) acts on the GHRH receptor. Activating both pathways at once generates a more robust GH pulse than using either peptide alone, while still honoring the body's natural pulsatile rhythm.
How many units are required for a 200 mcg dose from a 2 mg vial reconstituted with 2 mL?
A 2 mg vial holds 2,000 micrograms of peptide. When reconstituted with 2 mL of bacteriostatic water, the final concentration becomes 1,000 mcg per mL. To draw a 200 mcg dose, you need 0.2 mL of the solution, which measures as exactly 20 units on a U-100 insulin syringe.

Related on Peptide Pilot

Log CJC-1295 and Ipamorelin side by side in the app

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