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Oxytocin Acetate: Tanning / Libido research guide

In short: Oxytocin acetate is the acetate salt of the endogenous nonapeptide hormone oxytocin, studied as a reference ligand for the oxytocin receptor in social-cognition, bonding, and smooth-muscle signalling research. It is studied in preclinical (cell and animal) research and is supplied strictly for laboratory use, not for human or clinical use.

Not medical advice. Oxytocin Acetate is a research compound. This guide does not provide dosing, diagnosis, therapy recommendations, or claims about effects in humans.

Oxytocin Acetate at a glance

Compound type

Research peptide

Research category

Tanning / Libido

Also known as

Oxytocin, oxytocin acetate salt, CYIQNCPLG-NH2, Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2, nonapeptide hormone, OXT

Molecular weight

1007.19 Da (free peptide)

Research-grade purity

>99% HPLC

Evidence context

Preclinical / research use only

Regulatory status

Not an approved medicine. Supplied as a research compound

Last reviewed

29 July 2026

What to know first

Canonical reference agonist at the oxytocin receptor (OXTR) for binding and signalling assays

First peptide hormone ever sequenced and chemically synthesised (du Vigneaud, Nobel Prize 1955)

Extensively characterised structure - a nine-residue cyclic peptide with a defined disulfide bridge

Studied across social-cognition, affiliative-behaviour and trust research paradigms

Details and limits sit in the sections below. Research use only.

What Oxytocin Acetate is

Oxytocin acetate is the acetate salt of the endogenous nonapeptide hormone oxytocin - the canonical oxytocin-receptor agonist and one of the most thoroughly characterised peptides in biology.

One-paragraph overview from our research datasheet. Still scientific, but faster to read than the full mechanism list below.

Oxytocin acetate is the acetate salt of the endogenous nonapeptide hormone oxytocin, studied as a reference ligand for the oxytocin receptor in social-cognition, bonding, and smooth-muscle signalling research.

Research contexts

Peer-reviewed papers discuss Oxytocin Acetate in specific lab settings. The points below reflect research questions, not health claims.

Research vs. personal use: Literature describes experiments in cells and animals. That is distinct from real-world use. Our products are for laboratory research only.

Typical study contexts

Melanocortin receptor pharmacology in animal or cell systems.

UV-response pathways studied for mechanism, not human tanning advice.

Canonical reference agonist at the oxytocin receptor (OXTR) for binding and signalling assays.

First peptide hormone ever sequenced and chemically synthesised (du Vigneaud, Nobel Prize 1955).

Extensively characterised structure - a nine-residue cyclic peptide with a defined disulfide bridge.

Studied across social-cognition, affiliative-behaviour and trust research paradigms.

Why Tanning / Libido research matters

These peptides are studied for melanocortin receptor biology and pigmentation. That work is separate from consumer tanning products.

Mechanisms (technical review)

Our datasheet lists mechanistic themes from preclinical work. These are research endpoints, not health claims.

Canonical reference agonist at the oxytocin receptor (OXTR) for binding and signalling assays

First peptide hormone ever sequenced and chemically synthesised (du Vigneaud, Nobel Prize 1955)

Extensively characterised structure - a nine-residue cyclic peptide with a defined disulfide bridge

Studied across social-cognition, affiliative-behaviour and trust research paradigms

Used in smooth-muscle physiology research on uterine and mammary tissue

Well-documented pharmacology makes it a dependable positive control in neuropeptide work

Lab handling & preparation

Storage: Lyophilised powder: store in freezer (−20 °C). Reconstituted: refrigerate 1–6 °C, away from sunlight. Use within the validated stability window for the specific batch and formulation.. See the storage guide.

Research dosing context: Literature typically discusses 10–40 IU intranasal equivalents are the ranges most often reported in published social-cognition protocols. Single-administration study designs predominate; repeated-dose schedules appear less often in the literature Oxytocin has a short plasma half-life, commonly reported in the range of 1–6 minutes, with rapid enzymatic degradation by oxytocinase and hepatic/renal clearance. Central nervous system penetration after peripheral administration is limited and remains actively debated - a significant methodological caveat in the intranasal social-cognition literature. Intravenous, intramuscular and intranasal routes all appear in published work; oral bioavailability is negligible due to gastrointestinal peptidase degradation. These figures describe published research protocols and are not a dosing recommendation.

Preparation: Follow the reconstitution guide. Confirm volumes with the calculator.

Purity check: Use the COA reading guide and the published Oxytocin Acetate Certificate of Analysis.

Common Questions People Are Asking

What is oxytocin acetate used for in research?

It is the canonical reference agonist at the oxytocin receptor, used in binding, signalling and antagonist-screening assays, in classical uterine and mammary smooth-muscle physiology, and across social-cognition and affiliative-behaviour paradigms in animal models.

Why the acetate salt?

Acetate is the standard counter-ion for research-grade peptides. It improves handling and stability of the lyophilised powder and dissolves cleanly in bacteriostatic water or sterile saline. The active nonapeptide is identical; the acetate simply accompanies it as the salt form, which is why the quoted 1007.19 Da molecular weight refers to the free peptide.

Is this the same as the oxytocin used in hospitals?

No. An approved medicinal oxytocin product exists and is used clinically under professional supervision for obstetric indications. The material supplied here is unapproved research-grade laboratory material intended for in-vitro and preclinical work. It is not a substitute for an approved medicine.

How is oxytocin proposed to work?

It is a full agonist at the oxytocin receptor (OXTR), a class-A GPCR that signals principally through Gq/11 and phospholipase C, generating IP₃ and mobilising intracellular calcium. Peripherally this drives smooth-muscle contraction; centrally it modulates excitability in amygdala, hypothalamic and limbic circuits in animal models. Note that oxytocin retains measurable affinity at vasopressin V1a and V2 receptors, so selectivity controls matter.

How should oxytocin acetate be stored?

Keep the lyophilised powder frozen at −20 °C. After reconstitution with bacteriostatic water or sterile saline, refrigerate at 1–6 °C and protect from light. As a disulfide-bridged cyclic peptide it is sensitive to reducing conditions and repeated freeze-thaw cycles, so aliquot after reconstitution where the protocol allows.

Is this page medical advice? Can I use Oxytocin Acetate for my health?

No, and no. This article is educational only. We do not provide dosing, medical recommendations, or health claims. Our products are sold strictly for laboratory research, not for personal use of any kind.

Where do I find Oxytocin Acetate specs, purity certificates and pricing?

Open the shop listing via “View product details.” There you will see batch specs, the Certificate of Analysis (COA), concentration, purity grade, and available SKUs with current pricing.

Related peptide guides

Other compounds researchers often read about alongside Oxytocin Acetate.

PT-141 - companion guide

Kisspeptin - companion guide

Melanotan-2 - companion guide

Melanotan-1 - companion guide

Scientific sources & further reading

Primary literature and registries for Oxytocin Acetate, plus mainstream coverage of the peptide category. Research use only - not medical advice.

Databases & literature:

PubMed: peer-reviewed literature on Oxytocin Acetate

ClinicalTrials.gov: registered studies on Oxytocin Acetate

Oxytocin Acetate: Wikipedia

Peptides in the news:

WebMD: consumer health reference

BBC News: Health

CNN Health: “Peptides: what to know about the wellness trend”

Sky News: “Can peptides make America healthy again?”

Sky News: “Inside the exploding US peptides craze” (video)

Sky News Australia: “Black market peptide trade explodes as influencers fuel uptick in use”

Sky News Australia: “Backyard peptide boom sparks alarm” (video)

Sky News Australia: “Oprah reveals struggle with shame of weight-loss drugs”

Ready to order? View full product specs

Access concentration, batch info, variants, and current pricing on our shop.

Also known as: Oxytocin, oxytocin acetate salt, CYIQNCPLG-NH2, Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2, nonapeptide hormone, OXT

PRECISION. PURITY. PERFORMANCE.

Research peptides at >99% HPLC-verified purity, third-party tested by Janoshik Analytical & Freedom Diagnostics, with Certificates of Analysis published per released batch. Supplied strictly for laboratory research use.

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