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CJC-1295 (No DAC) vs CJC-1295 + Ipamorelin

CJC-1295 (No DAC) and CJC-1295 + Ipamorelin are studied in overlapping research areas, which is why they are frequently compared. This is a neutral side-by-side reference drawn from published preclinical literature and laboratory handling data.

Shared research areas:Hormonal & EndocrineMetabolic
ClassGHRH(1-29) tetra-substituted analogue (DAC-free)Combination — GHRH(1-29) analogue plus selective ghrelin-receptor agonist
Molecular weight3367.9 g/molNot specified
CAS numberNot assigned / not specifiedNot assigned / not specified
Purity spec≥99%≥99%
Research areasHormonal & Endocrine, MetabolicHormonal & Endocrine, Metabolic
Primary diluentBacteriostatic water (0.9% benzyl alcohol)Bacteriostatic water (0.9% benzyl alcohol)
Working windowCommonly worked with for 2-3 weeks at 2-8 °C.Commonly worked with for 2–3 weeks at 2–8 °C — governed by the shorter-lived component.
Lead degradation routeDeamidation at Asn/Gln residues over long solution storage.Independent degradation of the two components at different rates, which is the defining stability characteristic of any blend.
Freeze–thawAliquot on first reconstitution; avoid re-freezing the solution.Aliquot on reconstitution. In a blend, each component degrades on its own schedule, so the practical shelf life is set by whichever fails first.
Light sensitivityNo specific light requirement beyond normal practice.Protect from light.

How they actually differ

Comparing the two: CJC-1295 (No DAC) is ghrh(1-29) tetra-substituted analogue (dac-free), while CJC-1295 + Ipamorelin is combination — ghrh(1-29) analogue plus selective ghrelin-receptor agonist — different molecular classes with different handling consequences; their leading degradation routes differ (deamidation at asn/gln residues over long solution storage. for CJC-1295 (No DAC), independent degradation of the two components at different rates, which is the defining stability characteristic of any blend. for CJC-1295 + Ipamorelin), so the storage precautions that matter are not the same; their practical working windows differ once reconstituted. The sections below set out each in full.

CJC-1295 (No DAC) — origin

CJC-1295 without DAC is the first 29 residues of growth-hormone-releasing hormone carrying four stabilising substitutions (D-Ala2, Gln8, Ala15, Leu27) that resist DPP-4 cleavage. Omitting the Drug Affinity Complex — the albumin-binding element of the DAC version — gives it a short half-life, which is the property researchers study it for.

CJC-1295 + Ipamorelin — origin

This is a two-compound blend studied for complementary mechanisms rather than a single molecule. CJC-1295 is a modified GHRH(1-29) fragment with four amino-acid substitutions that resist enzymatic degradation. Ipamorelin is a pentapeptide ghrelin-receptor agonist notable for its selectivity — it was specifically developed to stimulate GH release without the cortisol and prolactin effects of earlier secretagogues like GHRP-6.

CJC-1295 (No DAC) research themes

Pulsatile GH release

Studied for prompting growth-hormone release in short, physiological pulses via the GHRH receptor.

DPP-4 resistance

The four substitutions are studied for extending the molecule beyond the minutes-long survival of native GHRH.

Complementary pairing

Frequently studied alongside ghrelin-receptor secretagogues such as Ipamorelin, which recruit a second GH-release pathway.

CJC-1295 + Ipamorelin research themes

Complementary GH pathways

GHRH-receptor and ghrelin-receptor agonism act through different mechanisms, which is the rationale for pairing them.

Ipamorelin selectivity

Developed specifically for GH release with minimal cortisol and prolactin effects — its defining pharmacological feature.

GH pulsatility

Studied for effects on the pattern of GH secretion rather than continuous elevation.

Body composition in research models

A common endpoint in the preclinical literature for GH-axis compounds.

CJC-1295 (No DAC) handling

  • Reach room temperature before opening.
  • Swirl to dissolve; do not shake or vortex — foam indicates interfacial stress on the helix.
  • Aliquot and refrigerate; never re-freeze reconstituted solution.

CJC-1295 + Ipamorelin handling

  • Confirm whether the labelled mass is total blend mass or per-component before calculating concentration.
  • Reconstitute the full vial rather than attempting to subdivide dry material — the two components will not partition evenly in powder form.
  • Protect from light and refrigerate.

Both third-party tested

Every Popular Peptides batch of CJC-1295 (No DAC) and CJC-1295 + Ipamorelin is independently tested by HPLC and LC-MS with a published Certificate of Analysis. Enter a lot number to pull the COA for a specific vial.

CJC-1295 (No DAC) reference

CJC-1295 + Ipamorelin reference

Related comparisons

CJC-1295 (No DAC) and CJC-1295 + Ipamorelin are supplied strictly as research chemicals for in-vitro laboratory and research use only. They are not intended for human or animal consumption, diagnostic, or therapeutic use. This comparison summarizes published preclinical literature and laboratory handling data; it is not medical advice, not a claim of efficacy, and not usage guidance.