How it works.
CJC-1295 without DAC — also called Modified GRF (1-29) — is a 29-residue analog of growth-hormone-releasing hormone. Four substitutions relative to native GHRH(1-29) (D-Ala at position 2, Gln at 8, Ala at 15, Leu at 27) protect it from DPP-4 cleavage while preserving GHRH-receptor affinity. It agonizes the GHRH receptor on anterior-pituitary somatotrophs, raising the amplitude of endogenous GH pulses. Unlike the DAC (Drug Affinity Complex) version, which binds albumin and persists for days, the no-DAC form has a short half-life (~30 minutes), so its GH release tracks the body's natural pulsatile rhythm. In research it is most often studied alongside a ghrelin-receptor secretagogue such as ipamorelin, where the two receptor systems produce a larger, more physiological GH pulse than either alone.
Verified buyer notes.
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“COA matched what we ran in-house. Powder reconstituted clean, no haze. Did exactly what we needed it to.”
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“Shipment got delayed two days by weather and still arrived at 4°C. Packaging is no joke.”
The shared signature.
A 15-amino-acid pentadecapeptide derived from human gastric juice, studied for its effects on tissue repair, vascular signaling, and connective-tissue research.
A synthetic fragment of thymosin beta-4 studied for its effects on cell migration, actin sequestration, and tissue repair signaling.
A 29-amino-acid GHRH analog studied for its effects on endogenous growth-hormone secretion through pituitary GHRH receptor activation.
A selective pentapeptide growth-hormone secretagogue studied for its effects on GH release through the ghrelin/GHS receptor, with minimal impact on cortisol or prolactin.