CJC-1295 is a GHRH analog supplied in two distinct forms — with DAC (Drug Affinity Complex) and without DAC (Modified GRF 1-29). The form you receive dramatically changes half-life, so confirming which version a vendor ships is the single most important sourcing step.
With DAC vs Without DAC — Verify First
CJC-1295 with DAC has a half-life of days; without DAC (Modified GRF 1-29) it is ~30 minutes. These are effectively different research tools. A reputable vendor states clearly which form the vial contains — if it is ambiguous, do not buy.
What to Look for
Require a third-party COA (HPLC and mass spectrometry) confirming ≥98% purity. The no-DAC form has MW ~3,367.9 Da; the DAC form is heavier due to the albumin-binding maleimide addition.
Typical Price Range
Research-grade CJC-1295 typically costs about $45–$65 per vial. The DAC form is often priced higher than no-DAC.
Red Flags to Avoid
Vials that do not specify DAC vs no-DAC, missing COAs, prices far below market, and human-use claims. Form ambiguity is the top red flag for this compound.
Top Recommended Source
Purgo Labs is our top-rated source based on third-party COA verification, research-grade purity, and transparent manufacturing. View at Purgo Labs.