Peptide library · Mood / connection

Oxytocin

The "bonding" hormone, linked to mood, social connection, warmth, and wellbeing, and sometimes to libido and reduced stress.

Also goes by

OXT · Syntocinon

Amino-acid sequence

Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly

Research-market price

~$11.00 /mg avg

observed range $2.50–$19.50/mg

Average across the research market as of 2026-07-19. Informational only — not a Blue Star price, and not an offer to sell.

Thinking about this one?

Don't figure it out alone. Talk it through with Daniel first — twenty years of firsthand experience, free, no strings. And if it makes your plan, the app tracks it: doses, draws, supplies, and the bloodwork to watch.

Talk to Daniel Track it in the app

Educational information, not medical advice. Nothing here says this compound will treat, cure, or prevent anything. Talk to your physician.