Oxytocin
Pre-Order5 mg · Lyophilized powder
Available for pre-order
Nonapeptide neurohypophysial hormone.
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Quick Summary
FDA-approved ingredient (Pitocin) — prescription onlyOxytocin is a nine-amino-acid hormone made in the brain and released by the pituitary gland. It acts on the oxytocin receptor to trigger uterine contractions and milk release, and synthetic oxytocin (Pitocin) is an FDA-approved prescription drug for specific uses in childbirth. It is also widely studied in social-behavior research, where human findings are mixed.
Areas of research
- Obstetrics
- Receptor biology
- Social neuroscience
- Autism research
- Amount
- 5 mg
- Form
- Lyophilized powder
- References
- 4 cited
- COA
- Batch report pending
- Free U.S. shipping over $150
- Lyophilized powder in a sealed vial
Research Use Notice. This product is intended for laboratory and research purposes. It is not intended for human consumption or personal medical use. Product information is provided for scientific and educational context only. See our Research Use Policy.
Why Researchers Study It
- Oxytocin receptor (OXTR) signaling
- Uterine contraction and lactation, the basis of its approved obstetric use
- Social bonding and social behavior, mostly in animal studies
- Intranasal human studies, including a large 2021 autism trial that found no significant effect
What It IsOxytocin is a nine-amino-acid peptide hormone made in the hypothalamus and released from the posterior pituitary gland.
Oxytocin is a nine-amino-acid peptide hormone made in the hypothalamus and released from the posterior pituitary gland. Two of its cysteines form a bridge that gives it a ring shape.
Synthetic oxytocin is the active ingredient of FDA-approved prescription medicines such as Pitocin. This research-grade material is not an approved drug product.
Oxytocin has well-established roles in childbirth and breastfeeding, and it is one of the most studied hormones in behavioral neuroscience. Researchers have investigated its involvement in social bonding, social recognition and stress responses, mainly in animals.
Human studies using intranasal oxytocin grew quickly in the 2000s, but many were small and later work has questioned how reliable some findings are.
How It Works2 established · 1 proposed or under investigation
Established
- Acts on the oxytocin receptor (OXTR), a G-protein-coupled receptor
- Triggers uterine contractions and milk let-down; these effects underlie its approved obstetric uses
Proposed / under investigation
- Influences on human social behavior and cognition remain debated, partly because it is unclear how much intranasal oxytocin reaches the brain
Research Status & EvidenceFDA-approved ingredient (Pitocin) — prescription only
Approved for specific obstetric uses under medical supervision. This product is research-grade material, not the approved drug.
Types of evidence
- Not available: Cell & lab studies
- Available: Animal studies
- Not available: Early human studies
- Available: Clinical trials
- Available: Approved medical use
Oxytocin's obstetric effects are established approved medicine. Behavioral research is extensive in animals, but human findings are mixed: a 290-participant trial of intranasal oxytocin in autistic children and adolescents found no significant difference from placebo, and methodological reviews have flagged low statistical power in the field.
Areas of research
- Obstetricslabor and postpartum uterine contraction (approved use)
- Receptor biologyOXTR signaling pathways
- Social neurosciencebonding and social behavior, mostly in animals
- Autism researcha large 2021 trial found no significant effect
Limitations
- Approved only as a prescription drug for specific obstetric uses under medical supervision
- Research-grade material is not the FDA-approved drug product
- Many human behavioral studies are small, and major findings have not replicated consistently
Specifications5 mg · Lyophilized powder
- Product
- Oxytocin
- Category
- Peptides
- Size
- 5 mg
- Form
- Lyophilized powder
- Synonyms
- Oxytocin acetate
- Molecular formula
- C43H66N12O12S2
- Molecular weight
- 1007.2 g/mol
- Sequence
- Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2 (Cys1–Cys6 disulfide)
- SKU
- REN-OXY-5
Molecular data: Oxytocin (FDA Pitocin prescribing information).
Testing & COA Batch report pending
Research References (4)Linked sources · last reviewed September 2026
- FDA. Pitocin (oxytocin injection, USP) prescribing information · accessdata.fda.gov
- Gimpl G, Fahrenholz F. The oxytocin receptor system: structure, function, and regulation. Physiol Rev 2001 · PubMed 11274341
- Sikich L et al. Intranasal oxytocin in children and adolescents with autism spectrum disorder. N Engl J Med 2021 · PubMed 34644471
- Walum H, Waldman ID, Young LJ. Statistical and methodological considerations for the interpretation of intranasal oxytocin studies. Biol Psychiatry 2016 · PubMed 26210057
Summaries are written by Renuvia Labs from the sources above for educational context only. Last reviewed September 28, 2026.
Frequently Asked Questions
What form is this product supplied in?
Peptides and research compounds ship as lyophilized (freeze-dried) powder in a sealed glass vial. The fill amount printed on the product page and label is the total content of the vial.
Is this product for human use?
No. All Renuvia Labs products are sold strictly for laboratory research use. They are not for human or animal consumption and are not intended to diagnose, treat, cure or prevent any disease.
Where can I find the Certificate of Analysis?
When a batch has a Certificate of Analysis, it is linked in the Testing & COA section of the product page and listed in the COA library, searchable by product, SKU or batch number.
Do you offer volume pricing?
Yes. Per-vial pricing drops automatically at 2, 3 and 5 vials of the same product; the current tiers are shown next to the price. For larger quantities, see our wholesale program.
How much is shipping?
U.S. orders of $150 or more ship free. Orders below that ship at a flat rate, shown in the cart.
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