Page last checked 2026-08-12

Combination · what has actually been studied

CJC-1295 and ipamorelin together

Also written CJC-1295/ipamorelin, or just CJC-1295 ipamorelin.

No trial has ever given CJC-1295 and ipamorelin to a person together. Every schedule for this pair traces back to a seller or a forum post, not to a study. Each peptide has been given to people on its own, and both of those records come with a catch: the CJC-1295 papers used a version most buyers do not hold, and every ipamorelin dose on record went into a vein.

Source: Searches of ClinicalTrials.gov and PubMed run 2026-08-12, both re-runnable below

limited human data Human trial

What matters first

Tested together: No study found
CJC-1295: limited human data on its own page
Ipamorelin: Human trial on its own page
Example vial ratio: 5 mg to 5 mg

Has anyone tested the two together?

No study has given CJC-1295 and ipamorelin to the same subjects. Not in people, and not in animals. Two searches were run to check, and both are set out below so you can run them yourself.

Searches run for studies naming both CJC-1295 and Ipamorelin
Searched	Query	Records	Gave both
ClinicalTrials.gov	CJC-1295 AND ipamorelin	0	0
PubMed	CJC-1295 AND ipamorelin	10	0

Both searches were run on 2026-08-12. The links re-run them live, so a newer study will show up there before it shows up here.

What the hits actually are

A search that returns records is not a search that returns trials. Nearly every hit here is a review article, which is one author summarizing other people’s work. These are the ones that are not:

A 2013 doping-control paper that built a test for seven peptides in horse blood. It measured them; it did not give them to anyone as a treatment.

The nearest thing to an answer

The closest human experiment used a different secretagogue, and it found no bonus. It gave sermorelin (GHRH 1-29) and GHRP-2 — not CJC-1295, and not ipamorelin. Same two families, different molecules, so read it as a clue about the idea rather than a finding about this pair.

Who took part: 8 volunteers, randomized crossover in healthy men, each man taking all three tests
Amounts given: 1 mcg per kilogram of body weight of each peptide, alone and then together, single injection into a vein
What it found: Together they released more growth hormone than either one alone. But the combined result was no bigger than the two separate results added up. The authors write that they could not show the two working as a team.
What cuts against it: One later report says this changes with repeat dosing: giving either peptide daily for a week or more turned the plain addition into something larger. That report is a conference write-up with no schedule table, so it is a hint and not a result.

Source: Tiulpakov AN, Brook CG, Pringle PJ, Peterkova VA, Volevodz NN. GH responses to intravenous bolus infusions of GH releasing hormone and GH releasing peptide 2 separately and in combination in adult volunteers. Clin Endocrinol (Oxf) 1995;43(3):347-50 · retrieved 2026-08-12.

Why these two get paired

The two peptides push the same gland through two different doors. CJC-1295 copies the hormone the brain sends to ask for growth hormone. Ipamorelin works on the ghrelin switch instead, which is a separate receptor. Two doors is a real idea, and it is why the pair exists. It is not proof that opening both is better.

What each one was really studied as

Every figure below comes from that compound’s own published sources, with the citation attached. The gap line shows what stack protocols often leave unanswered.

CJC-1295limited human data

Copies the brain signal that asks the pituitary for growth hormone

Studied as

Two phase 1 papers in healthy adults, at 30 to 90 mcg per kilogram of body weight, as single injections under the skin

Where that stops

Both papers used the version carrying a drug-affinity complex, which sticks to blood protein and lasts days. The material sold under this name usually has no such arm, clears in minutes, and has no human dosing paper at all. Vial strength is the same for both, so it cannot tell them apart.

The full CJC-1295 record CJC-1295 side effects, sourced

IpamorelinHuman trial

Flips the ghrelin switch on the pituitary, a separate receptor from the one above

Studied as

Two phase 2 trials in 437 people recovering from bowel surgery, at 0.03 to 0.06 mg per kilogram of body weight

Where that stops

Every one of those doses was an infusion into a vein, in hospital, set by body weight. No published trial has injected ipamorelin under the skin, and none used a flat milligram amount. The published trial also missed its target: people could eat a meal without trouble after 25.3 hours against 32.6 on a dummy treatment, a gap too small to count.

The full Ipamorelin record Ipamorelin side effects, sourced

If it came as one blend vial

Two separate vials are two separate sums, and the per-compound calculators already do those. A blend vial is a different object: both peptides sit in one liquid, so one draw carries both and the ratio was fixed by whoever filled it. The most-searched pairing for these two is 5 mg cjc-1295 with 5 mg ipamorelin, so that is the vial the table describes.

What one U-100 unit contains from a 5 mg plus 5 mg blend vial at each mixing volume
Water added	CJC-1295	Ipamorelin	Per U-100 unit
2 mL	2.50 mg/mL	2.50 mg/mL	25 mcg + 25 mcg
3 mL	1.67 mg/mL	1.67 mg/mL	17 mcg + 17 mcg
5 mL	1.00 mg/mL	1.00 mg/mL	10 mcg + 10 mcg

Deterministic arithmetic: concentration = milligrams divided by water, and one U-100 unit is 0.01 mL. The vial strengths come from our own keyword harvest, where cjc-1295 ipamorelin blend 5/5mg dosage draws 210 US searches a month. That is a record of what people look for, not a recommendation.

Set the syringe by one, and see what the other does

This is the part two separate calculators cannot show you. In a blend there is one volume and two peptides, so only one of them can be the number you choose. Pick that one below. The panel on the right reports what arrives with it.

Mixing water5 mg + 5 mg in one vial

Syringe

Set the syringe bythe other one follows

CJC-1295 in one drawyour number, not a suggestion

mcg

Draw to

—units

enter an amount to calculate

CJC-1295 — what you set

—

Ipamorelin — comes with it

—

The ratio is fixed. This vial holds the same amount of both, so every draw carries equal amounts of CJC-1295 and Ipamorelin. Changing the water or the barrel moves both together.

Arithmetic, not a dose. This tool only divides the contents of a vial you already have. It does not recommend an amount, and no trial has tested this pair in people.

Open this vial in the full calculator

The vial and water are filled in. You enter the amount you want to check.

What goes wrong with this pair

Two different molecules are sold as CJC-1295. One lasts days, the other minutes, and the vial label is identical.
Every human number for both peptides is set per kilogram of body weight. Neither converts into a vial amount without a weight, so a flat microgram figure did not come from either paper.
The published human studies of ipamorelin used intravenous dosing only. Injection under the skin is a different route with different timing, and no trial has measured it.
In a blend vial the ratio is fixed by whoever mixed it. Moving the syringe moves both peptides at once, so the two amounts cannot be set apart.
Growth hormone secretagogues, ipamorelin among them, are banned by the World Anti-Doping Agency at all times, in and out of competition.

Common questions

What is the dose for cjc-1295 and ipamorelin together?

There is no answer to give. No trial has set one, so any figure you find was written by a seller or a forum, and this site does not repeat those. What is on this page instead is what each peptide was separately given at, in the units the papers used, and the arithmetic for a vial you already hold.

Why does every other page have a schedule and this one does not?

Because those schedules have nothing behind them. A number repeated across a hundred pages is still one unsourced number. The searches above show what exists, and they take a second to re-run.

Does an absence of trials mean it is unsafe?

It means nobody knows. Absence of evidence is not evidence of harm, and it is not evidence of safety either. What can be said is narrower: nothing has measured what happens when these two go in together, so nobody can tell you what to watch for.

Can the two be mixed in one syringe?

That is a question about the chemistry of two powders in one liquid, and no published stability work covers this pair. Separately from that, a pre-mixed vial locks the ratio, so mixing removes a choice rather than adding one.

Is a blend vial the same as buying cjc-1295 and ipamorelin separately?

No. Two vials keep the two amounts apart, and each one has its own calculator on this site. One blend vial ties them together at whatever ratio it was filled at. The table above shows what that costs you in control.

Is either one approved?

Neither. Both are sold as research compounds, neither has an approved label, and no pharmacy is preparing either from an approved medicine. That is true of each one alone, and even more so of the two together.

Keep reading

Every row above is read from the two records behind it. Each calculator opens on one compound’s own vial sizes, which is the sum to run when the two are bought separately.

Every stack on page, not only CJC-1295 and ipamorelin

3 pairs on page and 1 of them ever given together, with CJC-1295 and ipamorelin as one example

Draw math for CJC-1295 on its own, outside CJC-1295 and ipamorelin

CJC-1295 vial sizes: 5 mg. These do not come from CJC-1295 and ipamorelin.

Draw math for ipamorelin on its own, outside CJC-1295 and ipamorelin

Ipamorelin vial sizes: 5 mg. These do not come from CJC-1295 and ipamorelin.

Vial, water and dose beyond the CJC-1295 and ipamorelin pairing

U-100, U-50 and U-40 barrels each read differently, including CJC-1295 and ipamorelin

The arithmetic under a CJC-1295 and ipamorelin vial

3 pairings preset, and any two strengths typed in instead, including CJC-1295 and ipamorelin

Ipamorelin on its own, outside CJC-1295 and ipamorelin

No regulator has approved ipamorelin — beyond CJC-1295 and ipamorelin.

The full CJC-1295 entry CJC-1295 and ipamorelin reads from

No published half-life for CJC-1295, cited apart from CJC-1295 and ipamorelin.

The Tesamorelin and ipamorelin pair, beside CJC-1295 and ipamorelin

2 re-runnable searches behind Tesamorelin and ipamorelin, counted independently of CJC-1295 and ipamorelin.

6primary sources, each with the day we read it — open the documents used on this page