A nonapeptide with a real clinical record
Oxytocin is produced in the hypothalamus and released from the posterior pituitary. It has been used clinically for a long time in obstetric contexts, which puts it in a small group here: compounds with a decades-long record of supervised human use.
It is also structurally close to vasopressin, differing at two positions. Two residues separate a hormone associated with uterine contraction and milk ejection from one that regulates water balance, which is a good reminder of how little it takes.
The social hormone question
Research into oxytocin and social behaviour, trust and bonding produced a wave of striking early findings, particularly from intranasal administration studies. It is where the popular name comes from.
That literature has since had a difficult decade. Several headline effects failed to replicate at scale, and whether intranasally administered oxytocin reaches the brain in meaningful quantity is itself contested. The clinical record is solid; the social-behaviour claims are not settled.
| Length | 9 amino acids |
| Produced in | Hypothalamus; released from posterior pituitary |
| Related to | Vasopressin — two residues apart |
| Clinical use | Long-established in obstetric contexts |
| Contested area | Social behaviour effects of intranasal administration |
| Format here | Nasal spray, combined with PT-141 |
| Standalone product | Not currently |
| Category | Research use only |
Laboratory characteristics. The rows make no promise.
Why it is in the catalogue
We supply oxytocin in a nasal spray alongside PT-141. Both compounds are studied in overlapping behavioural contexts, and the combination suits protocols that call for both.
It is not sold as a standalone product here. If oxytocin on its own is what you need, we are not currently the supplier, and the PT-141 page will tell you what the combination product actually contains.
Oxytocin in the catalogue
Purity is established by HPLC at 99% minimum on every production run.
Where this fits in
Three articles that add to what is here.
About Oxytocin
What readers want settled before buying.