CJC-1295 research guide for Cărand. Covers DAC vs no-DAC forms, half-life differences, purity testing, and how to source quality CJC-1295 for research.
Most researchers searching for CJC-1295 in Cărand quickly find that local retail options are essentially nonexistent. This matters because CJC-1295 quality differs enormously across the market — from analytically confirmed high-purity product to products with serious contamination — and the vendor controls every quality variable. What consistently distinguishes top CJC-1295 vendors is full COA coverage: HPLC for purity, mass spec for identity and weight verification, and endotoxin testing for safety screening. The sections below cover what Cărand researchers need to know about purchasing, testing, and working with CJC-1295 for research purposes.
How CJC-1295 Works — Mechanisms & Research
CJC-1295 with DAC (Drug Affinity Complex) is a GHRH analogue with an extended half-life achieved through DAC technology that enables covalent binding to albumin. This modification extends the half-life from minutes (for native GHRH) to approximately 6-8 days, creating a sustained elevation in basal GH levels rather than the pulsatile pattern produced by GHRP compounds. This pharmacokinetic distinction is significant for research design: CJC-1295 based on CJC-1295 with DAC produces a different GH secretion pattern than GHRP compounds, with different downstream effects on IGF-1 and protein synthesis. Researchers in Cărand comparing compounds in this class should account for these pharmacokinetic differences in their experimental design.
CJC-1295 Purchasing Guide
Evaluating CJC-1295 vendors begins with the COA: locate the batch-specific certificate before placing an order, not after. The HPLC purity trace is the most important document in the COA: it should show a large primary peak representing CJC-1295, with negligible secondary peaks representing impurities — purity should be at or above 98%. For Cărand researchers evaluating new suppliers: a small initial order to verify quality before scaling up your order is the accepted approach among experienced researchers. Hold lyophilised CJC-1295 at −20°C until ready to use; reconstitute only the quantity required for your immediate research and return unused portion to the freezer.
Order CJC-1295 — ships to Cărand
COA-verified · International tracking · Research grade
CJC-1295 is supplied strictly for research applications and is not approved for human use by the FDA or equivalent agencies worldwide — all information here is for educational purposes only. Lyophilised CJC-1295 should be stored frozen (−20°C) immediately upon receipt; repeated freeze-thaw cycles of reconstituted material should be avoided by aliquoting into single-use portions. Bacterial endotoxin contamination is the most serious safety risk associated with research-grade peptides — verify endotoxin testing is documented in your batch COA before any injectable research application. Protocol documentation — documenting product details, dates, and administration precisely — is a research best practice for CJC-1295 that allows any unexpected observations to be properly contextualised.
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 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.
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.
