CJC-1295 & ipamorelin: the GH stack, benefits & research

Research purposes only Checked against official sources Oct 16, 2026

Quick facts

What they are: two lab-made peptides that push the body to release growth hormone.
Status: research purposes only. Not FDA-approved.
Research: small human studies show CJC-1295 raises GH and IGF-1 for days after one shot.
Dosage: no established human dose.
Why it's popular: a big, multi-day growth-hormone pulse from a single CJC-1295 shot in studies.

What is CJC-1295 & ipamorelin?

CJC-1295 is a long-acting version of growth-hormone-releasing hormone. Ipamorelin mimics ghrelin, a hunger hormone that also triggers growth-hormone release. Online they're usually sold and talked about as a pair.

Is CJC-1295 & ipamorelin FDA-approved?

Neither is FDA-approved for any use. Both are on the FDA compounding safety-risk list: FDA flagged immunogenicity and impurity concerns, and says it has seen serious adverse events with CJC-1295, including increased heart rate and a whole-body flushing (vasodilatory) reaction. Unlike BPC-157, these were not among the peptides pulled off that list in April 2026. Both are banned at all times in sport under S2.2.4 of the 2026 WADA Prohibited List.

CJC-1295 & ipamorelin dosage: what we actually know

There is no established or approved human dose for either, so we don't give one. What studies used:

CJC-1295 (PMID 16352683): single and repeated injections under the skin, dosed by body weight, in healthy adults. The authors said 30 or 60 µg/kg was relatively well tolerated. One study, short term, hormone levels only.
Ipamorelin (PMID 25331030): 0.03 mg/kg by IV twice daily for up to 7 days in hospital after surgery. Not comparable to home injections.

Why online numbers don't agree

Online "CJC-1295" may be the long-acting version from studies (with DAC) or a short-acting one without it. They behave very differently.
Study doses were per kilogram, by different routes.
Product content varies, and there is no trial of the combination to anchor anything.

Good questions to bring to a clinician

What is actually in the product, and has it been third-party tested?
Is there any human evidence for my specific goal, or only animal studies?
Could it interact with my other medicines or conditions?
Is there an FDA-approved option for what I'm trying to treat?
How would we know if it's working, or causing harm?

What the research shows

CJC-1295 (J Clin Endocrinol Metab, 2006): small placebo-controlled studies in healthy adults. One shot raised growth hormone 2–10× for 6+ days and IGF-1 1.5–3× for 9–11 days. These measured hormone levels, not muscle, fat or recovery.
Ipamorelin (Int J Colorectal Dis, 2014): a 114-patient trial after bowel surgery, given by IV in hospital. It was well tolerated but did not beat placebo on recovery of gut function.
The combo: we found no published human trial of CJC-1295 plus ipamorelin together.

New to these terms? See the glossary.

CJC-1295 & ipamorelin FAQ

What is the CJC-1295 ipamorelin dosage?

There's no established human dose because both are research-only.

Is CJC-1295 FDA-approved?

No. It's sold for research purposes only.

Does ipamorelin work?

It triggers growth-hormone release and was well tolerated in a 114-patient hospital trial, though that trial didn't speed gut recovery after surgery.

Are CJC-1295 and ipamorelin banned in sport?

Yes. Both are named under S2.2.4 of the 2026 WADA Prohibited List, banned at all times.

Research purposes only. Not FDA-approved for human use, and products vary in quality. Findings above are from the studies cited.

Not medical advice. Education only. We don't sell anything or tell you what to take. Label doses are there so you can follow along with your prescriber. Talk to a licensed clinician about your health.

All guides: Semaglutide · Tirzepatide · Retatrutide · Orforglipron (Foundayo) · BPC-157 · TB-500 (thymosin beta-4) · GHK-Cu (copper peptide) · Collagen peptides · Tesamorelin (Egrifta) · MOTS-c · Semax · PT-141 (bremelanotide, Vyleesi) · Peptides 101 · Why is peptide info so confusing?