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Growth-Factor Research · Secretagogue Class

CJC-1295 + Ipamorelin: Research Overview

What is the CJC-1295 + Ipamorelin blend? It is two synthetic peptides supplied together for laboratory study: CJC-1295, a modified 29-amino-acid GHRH(1-29) analog, and ipamorelin, a selective pentapeptide ghrelin-receptor (GHS-R1a) agonist. The pairing is used in research on GHRH-receptor plus ghrelin-receptor co-stimulation. Research use only.
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Technical profile

BlendCJC-1295 + Ipamorelin — two peptides supplied together for laboratory study
Component 1CJC-1295: modified 29-amino-acid GHRH(1-29) analog. Exists with and without DAC (Drug Affinity Complex); the two forms differ in structure and molecular weight, so no single MW applies. The batch COA specifies which form a given batch contains.
Component 2Ipamorelin: selective pentapeptide ghrelin-receptor (GHS-R1a) agonist; C₃₈H₄₉N₉O₅, MW ~711.9 g/mol
Receptor targetsGHRH receptor (CJC-1295) and ghrelin receptor GHS-R1a (ipamorelin) — two distinct pathways studied in co-stimulation research
Form suppliedLyophilized powder, sealed vial
StorageLyophilized: 2–8 °C, protected from light.
VerificationHPLC purity ≥99% per component, sterility, endotoxins, heavy metals — documented on the batch COA

What does the research literature cover?

The two components of this blend act on different receptors, which is why they appear together in experimental designs. Published preclinical work has examined them in the context of:

Important context: the published evidence base for these compounds is preclinical (cell and animal models). Neither CJC-1295 nor ipamorelin has an approved human use in any jurisdiction. Summaries here describe what researchers have studied — they are not claims about effects in humans.

Why purity matters for blend research

Two-component research material doubles the opportunity for confounds: truncated sequences, deletion impurities, or endotoxin contamination in either peptide can distort co-stimulation experiments. Every VP Peptides CJC-1295 + Ipamorelin batch ships with a Certificate of Analysis documenting ≥99% HPLC purity for each component, the CJC-1295 form supplied (with or without DAC), and sterility, endotoxin and heavy-metal testing from independent third-party testing.

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Frequently asked questions

Does this blend contain CJC-1295 with DAC or without DAC?

CJC-1295 exists in two forms: with DAC (Drug Affinity Complex) and without DAC (sometimes called Mod GRF 1-29). They differ in structure and molecular weight. The Certificate of Analysis for each batch specifies exactly which form that batch contains — always consult the COA before designing an experiment.

Is CJC-1295 + Ipamorelin approved for human use?

No. Neither CJC-1295 nor ipamorelin is approved by the FDA or any other regulatory agency for human use. The blend is supplied strictly as research material for in-vitro and laboratory investigation. It is not a drug, supplement, or food ingredient.

Why are these two peptides studied together?

They act on two different receptors — CJC-1295 at the GHRH receptor and ipamorelin at the ghrelin receptor (GHS-R1a) — that feed into the same downstream signaling axis. Supplying both peptides together lets laboratories study co-stimulation of the two pathways in a single experimental design.

What is the status of these compounds in competitive sport?

Growth-hormone secretagogues and GHRH analogs are listed as prohibited substances under the World Anti-Doping Agency (WADA) Prohibited List. This is noted for informational purposes only; VP Peptides materials are supplied solely for laboratory research.

What the literature says about each component — and about the combination

An important framing point for this blend: the two peptides have been characterized separately in the peer-reviewed literature, and that separate characterization is what the evidence supports. No published controlled study establishes a synergistic effect for the specific CJC-1295-plus-ipamorelin combination; the reason for pairing them is mechanistic, not an outcome the literature has demonstrated.

For the GHRH arm, Teichman and colleagues, and Alba and colleagues in a GHRH-deficient mouse model, studied CJC-1295 as a long-acting GHRH-receptor analog. GHRH receptors are Gs-coupled: agonist binding raises intracellular cAMP in somatotrophs, the pituitary cells that store growth hormone. The modifications in CJC-1295 are designed to slow degradation and extend the window over which the receptor is engaged, relative to native GHRH fragments.

For the ghrelin arm, Raun and colleagues described ipamorelin as a selective agonist of the growth-hormone-secretagogue receptor (GHS-R1a), a Gq-coupled receptor that signals through phospholipase C and intracellular calcium. Their preclinical work emphasized selectivity — activity at GHS-R1a without the cortisol and prolactin responses reported for earlier secretagogues.

Because the two receptors sit on different signaling pathways that both converge on the same somatotroph population, researchers study them together to ask how GHRH-receptor and ghrelin-receptor inputs interact at the cellular level. All of the above is preclinical pharmacology described in cell and animal systems; neither peptide has an approved human use, and none of these references characterizes an effect in people.

Selected research references

Related research compounds

Research use only. All products described on this page are furnished for laboratory research purposes only and are not for human or veterinary use, not for use in food or cosmetics, and not for any diagnostic or therapeutic application. Nothing on this page is medical advice or a claim of safety or efficacy in humans. Research summaries reference publicly available preclinical literature; specific citations are listed in the references above.