Sermorelin vs CJC-1295
Two GHRH analogs: sermorelin, the classic GH-releasing therapy used in stimulation testing, vs cjc-1295, the longer-acting research analog studied for sustained GH elevation. Here's a neutral, sourced side-by-side — no hype, every claim links to its evidence.
Sermorelin
ApprovedAlso: Sermorelin + GHRP (GHRP-2, GHRP-6, or Ipamorelin), Sermorelin + CJC-1295
Sermorelin is a small protein fragment that tells the body's master gland to release more growth hormone. It works like a messenger.
CJC-1295
ApprovedAlso: CJC 1295, CJC-1295 / Ipamorelin Combination
CJC-1295 is a man-made peptide, which is a tiny chain of building blocks called amino acids. It is made to tell the body to let out more growth hormone.
At a Glance
| Sermorelin | CJC-1295 | |
|---|---|---|
| Research status | Approved | Approved |
| Highest-tier evidence | Peer-reviewed study | Peer-reviewed study |
| Research citations | 12 | 10 |
| Dosing routes | SubQ | SubQ |
| Receptor targets | GHRH receptor | GHRH receptor |
| Half-life | — | ~6-8 days (with DAC, albumin-bound); minutes-to-hours withou |
| Known side effects | 46 | 18 |
Research Areas
Top preclinical research areas — cited studies for each.
Sermorelin
- Reliable GH stimulation testing
- Stimulates endogenous GH
CJC-1295
- Sustained GH elevation
- Sustained IGF-1 elevation
How People Use It
Reported routines — research only, not medical advice.
Sermorelin
- SubQ — 0.2 - 0.3 mg once daily at bedtime
- SubQ — 500/500 mcg increasing to 1,000/1,000 mcg
- SubQ — Sermorelin 200 to 300 mcg plus ipamorelin 200 to 300 mcg
CJC-1295
- SubQ — CJC-1295: 50-100 mcg; Ipamorelin: 100-200 mcg
- SubQ — 100 mcg CJC-1295 + 100-200 mcg Ipamorelin
The Evidence
Key studies — click through to verify each on PubMed.
Sermorelin
12 sourced studies
- Source
Sermorelin: a review of its use in the diagnosis and treatment of children with idiopathic growth hormone deficiency.
Review2008 Key study 84/100Rated 84/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology → - Source
Sermorelin: a better approach to management of adult-onset growth hormone insufficiency?
95/100Rated 95/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology → - Source
Stimulatory effect of growth hormone-releasing hormone (GHRH(1-29)NH2) on the proliferation, VEGF and chromogranin A secretion by human neuroendocrine tumor cell line NCI-H727 in vitro.
2009 95/100Rated 95/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology → - Source
Study of the activation mechanism of human GRF(1-29)NH2 on rat mast cell histamine release.
1995 95/100Rated 95/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology →
CJC-1295
10 sourced studies
- Source
Prolonged stimulation of growth hormone (GH) and insulin-like growth factor I secretion by CJC-1295, a long-acting analog of GH-releasing hormone, in healthy adults.
RCT2006 Key study 86/100Rated 86/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology → - Source
Activation of the GH/IGF-1 axis by CJC-1295, a long-acting GHRH analog, results in serum protein profile changes in normal adult subjects.
AnimalStudy2009 80/100Rated 80/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology → - Source
Human growth hormone-releasing factor (hGRF)1-29-albumin bioconjugates activate the GRF receptor on the anterior pituitary in rats: identification of CJC-1295 as a long-lasting GRF analog.
95/100Rated 95/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology → - Source
Once-daily administration of CJC-1295, a long-acting growth hormone-releasing hormone (GHRH) analog, normalizes growth in the GHRH knockout mouse.
2006 95/100Rated 95/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology →
Decision Guide
How to Choose
Neither is a “winner” — they suit different goals. Compare the documented benefits and evidence above against what you’re actually trying to achieve, note the research status (approved vs research-stage), and read each full guide before deciding. Many people also stack peptides rather than pick one.
Source Sermorelin
Shop SermorelinSource CJC-1295