GHRH (Growth Hormone-Releasing Hormone)
GHRH stands for growth hormone-releasing hormone. It is a natural signal molecule made in the brain that tells the pituitary gland to release growth hormone.
Where the word comes from
GHRH is an abbreviation, not a Greek coinage: growth hormone-releasing hormone. Its one classical root is “hormone,” from Greek hormān, “to set in motion” — a name coined in the early 1900s for the body’s chemical signals. The “-releasing hormone” pattern is how endocrinology names signals from the hypothalamus: each is named for what it tells the pituitary gland to release. GHRH itself was isolated and sequenced in the early 1980s.
What it means here
Several peptides in our catalog — sermorelin, tesamorelin, and CJC-1295 — are lab-made analogs of GHRH, meaning their structure is based on it. Published studies examine how these analogs bind the GHRH receptor and how their stability compares with the natural hormone. When GHRH appears on one of our product pages, it names the family a compound belongs to. It does not describe a result.
Words you’ll see together
- GHRH receptor — the protein on pituitary cells that the hormone binds
- analog — a lab-made molecule whose structure is based on the natural hormone
- pituitary — the small gland at the base of the brain that the signal acts on
- growth hormone secretagogue — the broader family label papers use for compounds studied at this system
- half-life — a property measured in studies to compare analogs with the natural hormone
Related terms
- Receptor — GHRH works by binding a receptor on pituitary cells
- Peptide — GHRH is itself a peptide, a short chain of amino acids
- Agonist — GHRH analogs are studied as agonists at the GHRH receptor
- Half-life — a measured property that differs between GHRH and its analogs
Where it appears in our catalog
- Sermorelin — a shortened analog of GHRH studied in published research
- Tesamorelin — a GHRH analog with a stabilizing modification
- CJC-1295 DAC — a modified GHRH analog studied for its long measured half-life
References
- Pedrolli F (2026). Growth hormone-releasing hormone attenuates amyloid deposition and neuroinflammation in Alzheimer’s disease models. Cell Death Dis. PMID: 41946684
- Uçaktürk E, Nemutlu E (2026). Analysis of growth hormone releasing hormone and its analogs in urine using nano-LC + Q/Orbitrap MS. J Pharm Biomed Anal 268:117207. PMID: 41138283
