/DISCLAIMER · RESEARCH_COMPOUND

This page is reference information only. Most compounds described here are research chemicals, not FDA-approved medications. MyTRT does not sell, recommend, or endorse the use of these substances. Always consult a qualified physician.

/OXYTOCIN
Peptide

Oxytocin

Peptide Hormone

/HALF_LIFE
≈3–5 minutes
/DELIVERY
Intravenous or intramuscular injection; intranasal spray for central effects

/WHAT_IT_IS

Oxytocin is a naturally occurring neuropeptide produced in the hypothalamus and released by the posterior pituitary; it plays key roles in uterine contraction, milk ejection, and social bonding.

/USAGE

Used in research to study parturition (labor induction), lactation, social behavior, and anxiety modulation.

/MECHANISM_OF_ACTION

Binds to oxytocin receptors (OXTR) in target tissues, triggering G-protein coupled signaling that leads to uterine smooth muscle contraction, milk let-down, and modulation of central nervous system pathways involved in social cognition.

Reported Benefits

  • +Induction of uterine contractions
  • +Promotion of milk ejection
  • +Enhancement of social bonding and trust
  • +Reduction of anxiety in behavioral studies

Reported Side Effects

  • Uterine hyperstimulation (when used in labor)
  • Fluid retention
  • Hypotension
  • Headache

/RESEARCH_NOTES

Has very short plasma half-life and limited blood–brain barrier penetration; intranasal administration is commonly used to study central behavioral effects.

/REFERENCE

https://pubmed.ncbi.nlm.nih.gov/20823564/
/TRACK_THIS

Browse all 89 in the app.

MyTRT's in-app library has the same 89 peptide entries plus dosing notes, stack builders, and the ability to log them alongside your TRT protocol.

Last reviewed: 2026-06-04 · Reference only. Not medical advice. Consult a qualified physician.