What Is CJC-1295?
CJC-1295 is a synthetic analogue of growth hormone-releasing hormone based on the GRF (1-29) fragment, modified to improve stability. The version supplied without a drug affinity complex is often referred to as modified GRF (1-29). It is a research reference material, not an approved medicine.
Published 2026-08-22 · Updated 2026-08-22 · Reviewed by the Lana editorial team
Molecular information
Molecular formula C152H252N44O42; molecular weight approximately 3367.9 g/mol; CAS 863288-34-0; synonym modified GRF (1-29).
What mechanisms have been investigated?
Published research has examined GHRH analogues in relation to growth hormone-releasing hormone receptor signalling in laboratory and animal models.
Regulatory and research status
Not approved as a therapeutic product. Prohibited in sport by WADA as a growth hormone-releasing factor. Supplied for laboratory research only.