Buy CJC 1295: Long-Acting GHRH Analogue and Pituitary Pulsatility

DER

Reviewed by Dr. Elena Rostova

Molecular Pharmacology & Analytical Chemistry Reviewer

Expert in peptide receptor kinetics, cellular signaling pathways, and peptide stability.

⚠️ Laboratory Research Notice

All peptide compounds discussed in this guide are strictly intended for in vitro cellular research, analytical laboratory testing, and chemical evaluation. They are not approved for human or animal consumption, diagnostic use, or therapeutic applications.

CJC 1295 is a synthetic 30-amino-acid tetrasubstituted peptide analogue of Growth Hormone Releasing Hormone (GHRH 1-29). By replacing four key amino acids within the native sequence, CJC 1295 dramatically resists enzymatic degradation by dipeptidyl peptidase-4 (DPP-4).

When researchers buy CJC 1295, it is critical to understand the distinction between CJC 1295 No DAC (also known as Modified GRF 1-29) and CJC 1295 with DAC (Drug Affinity Complex). Each form provides distinct pharmacokinetics in endocrine research.

Tetrasubstituted Design: How CJC 1295 Resists Cleavage

Native GHRH (1-29) degrades within minutes in serum due to rapid DPP-4 cleavage between Ala-2 and Asp-3. CJC 1295 incorporates four specific amino acid substitutions:
1. D-Ala at position 2: Directly blocks DPP-4 enzymatic recognition.
2. Gln at position 8: Enhances chemical stability against spontaneous deamidation.
3. Ala at position 15: Improves structural helicity and receptor binding affinity.
4. Leu at position 27: Prevents methionine oxidation.

These modifications extend the functional half-life from less than 10 minutes to approximately 30 minutes in its ‘No DAC’ form, preserving natural pulsatile GH release.

🧭 Endocrine Pathway: Buy Cjc 1295

Step 1

GHRH Receptor Binding

CJC 1295 binds pituitary GHRH receptors on anterior pituitary somatotropes.

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Step 2

Gs Protein Activation

Stimulates adenylate cyclase to produce intracellular cyclic AMP (cAMP).

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Step 3

GH Gene Transcription

Activates Pit-1 transcription factor, promoting GH synthesis and release.

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Step 4

Physiological Pulsatility

Maintains natural circadian pulse frequency without pituitary desensitization.

CJC 1295 No DAC vs. CJC 1295 with DAC

Key research differences between the two formulations:

📊 Analytical Profile: Buy Cjc 1295

Feature	CJC 1295 No DAC (Mod GRF 1-29)	CJC 1295 with DAC
Molecular Structure	30-amino-acid peptide without linker	30-amino-acid peptide + Lys-maleimidopropionyl linker
Half-Life in Vivo	~30 Minutes	~6 to 8 Days (covalently binds albumin)
GH Release Pattern	Pulsatile, physiological spikes	Continuous, elevated baseline (bleed effect)
Molecular Weight	3367.9 Da	~3647 Da
Preferred Research Focus	Natural circadian pulsatility models	Continuous somatotrope elevation studies

Reconstitution and Laboratory Storage

Store dry lyophilized vials at -20°C. Reconstitute with sterile bacteriostatic water. Store working solutions at 2°C to 8°C and use within 28 days.

Frequently Asked Questions

❓ Which form is typically used in the CJC/Ipamorelin blend?

The vast majority of research blends utilize CJC 1295 No DAC (Modified GRF 1-29) to preserve natural, pulsatile GH release.