Peptide · Endogenous neuropeptide

Urocortin-III

Research peptide
Aliases · Urocortin-3 · UCN3 · Stresscopin

An endogenous CRF2-selective peptide studied for vascular, cardiac, metabolic and stress-related physiology.

Human
3/5
Animal
0/5
In-vitro
0/5
Safety
2/5
Last reviewed · 7/12/2026
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Last reviewed7/12/2026
Evidence statusEarly entry
Published references0
Trust signal panel
Evidence & safety
  • Human evidence
    n/a
  • Animal evidence
    n/a
  • Mechanistic
    n/a
  • Safety knowledge
    n/a
  • Editorial confidence
    4/5
View in knowledge graph →See this peptide connected to conditions & mechanisms
01

Evidence Snapshot

Evidence snapshot · 2 verified refs
Overall
3/5Moderate certainty (with caveats)
Human
3/5Multiple human studies
Animal
0/5None identified
In-vitro
0/5None identified
Safety
2/5Partially characterised safety
02

Scientific identity

Peptide family
Corticotropin-releasing factor family
Entity class
Endogenous neuropeptide
Alternative names
Urocortin-3UCN3Stresscopin
Discovery history

Identified as a CRF2-selective urocortin-family peptide, also called stresscopin.

02

Proposed Mechanisms

03

Reported / Studied Uses

04

Human Evidence

Small human vascular and cardiovascular studies show prolonged vasodilation and acute haemodynamic activity.

05

Animal Evidence

Preclinical studies explore cardiovascular, metabolic and pancreatic actions.

Species translation to humans is uncertain.
06

Safety & Unknowns

endogenous-neuropeptidepotent-vasodilatorlimited-human-datainvestigational
Possible risks include hypotension, headache, flushing and cardiovascular instability.
07

Regulatory Status

CountryStatusNotes
08

Community Observations

No approved community reports yet. Submit one. Aggregate data is observational only.
09

References

  • No verified references linked yet. Editors will add primary sources.
10

Full Disclaimer

This page is for educational information only. It does not constitute medical advice, diagnosis, treatment, dosing guidance, or a recommendation to use any peptide, medicine or research chemical. Many peptides discussed on Atlas are not approved for human use in most jurisdictions and may have limited or unknown long-term safety data.

Community observations shown on this page are anonymised, moderated and observational only. They do not establish safety or effectiveness.

Always consult a qualified healthcare professional before making decisions about your health. See medical disclaimer and methodology.

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ImportantPeptiBrief is an educational information platform. It does not diagnose, prescribe, sell peptides, recommend dosing, encourage self-experimentation or replace qualified medical care. Published scientific evidence is kept separate from community observations and uncertainty.