CJC-1295 in Cold Spring — GHRH Analog Research Guide
CJC-1295 research guide for Cold Spring. Covers DAC vs no-DAC forms, half-life differences, purity testing, and how to source quality CJC-1295 for research.
CJC-1295 in Cold Spring — Research & Sourcing Guide
For anyone in Cold Spring searching for CJC-1295, the key fact to understand is that this compound is distributed via specialist online vendors. This matters because CJC-1295 quality varies dramatically across the market — from verified research-grade material to material with significant impurity issues — and the vendor determines everything about the product. The primary quality indicators for CJC-1295 are HPLC purity ≥98%, molecular identity confirmed by mass spectrometry, and a bacterial endotoxin panel — all documented in a lot-traced Certificate of Analysis. The sections below cover what Cold Spring researchers need to know about purchasing, testing, and working with CJC-1295 for scientific research use.
CJC-1295 Mechanisms Explained
The selectivity profile of different GHS compounds is a critical research consideration. GHRP-6 and GHRP-2 produce GH release alongside cortisol and prolactin elevation — a confounding factor in research designs where these hormones are outcome variables. Ipamorelin was specifically developed for greater GH-release selectivity with minimal cortisol and prolactin elevation, making it more suitable for research designs where GH-specific effects need to be isolated. Hexarelin has the strongest GH-releasing potency in the GHRP class but also the most significant cortisol and prolactin effects. For Cold Spring researchers designing GH-axis studies, compound selection based on this selectivity profile should precede protocol finalization.
CJC-1295 Purchasing Guide
Before looking at individual vendors, establish a quality benchmark — so you can identify whether a supplier meets the standard. The HPLC purity trace is the most important document in the COA: it should show a clear dominant peak representing CJC-1295, with minimal secondary peaks representing impurities — purity should be at or above 98%. Strong quality indicators beyond COA quality: multi-year operating history, customer service that can discuss analytical methods, and cold chain packaging that protects product integrity. Bacteriostatic water is the appropriate reconstitution medium for CJC-1295 — it contains 0.9% benzyl alcohol that inhibits bacterial growth and extends reconstituted shelf life to 4 weeks when kept refrigerated.
Order CJC-1295 — ships to Cold Spring
COA-verified · International tracking · Research grade
As a research compound, CJC-1295 has not been through the clinical trial process required for pharmaceutical approval — its safety profile is based on preclinical research and restricted human research data. Storage requirements for CJC-1295: lyophilised powder at minus 20°C, reconstituted solution refrigerated at 2-8°C and finished within 30 days of reconstitution; reconstitute only with bac water. Verify the endotoxin level in your CJC-1295 batch COA before any protocol involving administration — look for results stated as EU/mg and confirm they fall within appropriate thresholds. Researchers combining CJC-1295 with other compounds should examine published studies for potential interaction data before running stacked compound experiments.
Frequently Asked Questions
What is CJC-1295?
CJC-1295 is a synthetic GHRH (Growth Hormone Releasing Hormone) analogue. The version with DAC (Drug Affinity Complex) has an extended half-life of approximately 6-8 days due to albumin binding. Without DAC, CJC-1295 has a much shorter half-life similar to native GHRH. Both versions stimulate pulsatile GH release via the GHRH receptor.
What purity is required for CJC-1295 research?
CJC-1295 should be ≥98% pure by HPLC. The larger molecular weight of CJC-1295 with DAC (approximately 3647 Da) makes mass spectrometry confirmation particularly important, as impurities may not be obvious on HPLC alone.
What is the difference between CJC-1295 with DAC and without DAC?
CJC-1295 with DAC uses a lysine-maleimide conjugate to bind covalently to albumin in the bloodstream, extending half-life to ~6-8 days and creating sustained GH elevation. CJC-1295 without DAC (also called Mod GRF 1-29) has a half-life of ~30 minutes and produces acute GH pulses. They produce different GH secretion patterns and have different applications in research.
