CJC-1295
A peptide that tells the pituitary to release growth hormone. Two versions. Research only. Not a protocol.
Simple words
The pituitary is a gland in your head. GHRH is the peptide that says “let some growth hormone out.” CJC-1295 is a lab copy of a short piece of GHRH (the first 29 amino acids, changed so it lasts longer).
DAC means drug affinity complex. An extra bit that sticks to albumin, a protein already in your blood. That makes the peptide hang around for days. No DAC (also called modified GRF 1-29) is the same idea without that sticker. It is gone much faster. People often pair the short one with ipamorelin.
What researchers studied
Sam Teichman and colleagues gave CJC-1295 with DAC to healthy adults (Journal of Clinical Endocrinology & Metabolism, 2006). Growth hormone and IGF-1 stayed up for days after a shot. That paper is about DAC, not the no-DAC vial in most shops.
Madalina Ionescu and Lawrence Frohman showed the natural pulse pattern of GH was still there, just sitting higher.
Papers
Teichman et al., 2006 — CJC-1295 DAC in healthy adults. GH and IGF-1 up for days. JCEM.
Ionescu and Frohman, 2006 — Pulses of GH still happen on DAC. JCEM.
What this is not
Not tesamorelin (different GHRH analog, different approved use). Not ipamorelin. DAC and no-DAC are not interchangeable just because the first letters match. This page does not tell you how much to take.
Related: ipamorelin · Grow · tesamorelin