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Hormone · Research kit

Oxytocin

4.9· 8 reviews
Oxytocin 10-vial research kit — HPLC-verified, Regena Peptides
Kit of 10 vials
4.9 / 5

Cyclic nonapeptide hormone for OXTR neuroscience and reproductive research.

Class
Cyclic nonapeptide hormone
Half-life
~3–5 min
Kit
10 vials
Use
Research only

Kit of 10 vials · 10mg per vial

Best value

€349.00

€34.90 per vial · ≈ €0.29/day for ~120 days · €3.49/mg

Sold as 10-vial kits · minimum order

We don't sell single vials. Every order is a sealed 10-vial research kit — it's how serious labs and long-protocol researchers actually buy, and it's how we keep quality and price honest.

  • ✓ Lower €/mg — batching 10 vials cuts our fill cost, and we pass it to you (per-vial price is 40–60% lower than typical single-vial pricing).
  • ✓ One batch, one COA — all 10 vials come from the same HPLC-verified lot, so your data stays consistent across a full study.
  • ✓ Real supply for real protocols — a 10-vial kit covers ~30–90 days of research depending on dose, so you're not re-ordering mid-study.
  • ✓ One shipment, one customs pass — fewer parcels = lower risk, lower shipping cost per vial, faster to your bench.

Choose strength · 10 vials per kit

Quantity
1
Order on WhatsApp

Bulk kit pricing

  • 2+ kits
    save 5%
  • 3+ kits
    save 10%
  • 5+ kits
    save 15%

Auto-applied at checkout. Stack sizes across the cart.

  • HPLC ≥99%COA per batch
  • Ships in 24hTracked, discreet
  • Free re-shipIf lost or seized

Rilz26 at checkout — free 6-month support + 30 peptide guides

Secure bank-transfer checkout · IBAN provided instantly · Ships from Spain within 24h

Pay by secure bank transfer (SEPA / IBAN). Card payments available on request — message us on WhatsApp after checkout and we'll send a secure payment link.
Free tracked EU shipping on orders over €300. Discreet packaging. Ships from Spain within 24h.
Every batch HPLC + mass-spec tested. COA available on request — view the COA library.
View full Oxytocin buyer page →

€ Price per mg — honest breakdown

Every Oxytocin kit ships as 10 vials. Here's the exact maths so you can see which strength gives you the most peptide per euro. Larger kits are usually significantly cheaper per mg.

Kit price

€349.00

10 mg × 10 vials

Per vial

€34.90

€349.00 ÷ 10 vials

Total mg in kit

100 mg

10 mg × 10

Per mg

€3.49

€349.00 ÷ 100 mg

Compare every kit

KitKit pricePer vialPer mg
2 mg / vial€239.00€23.90€11.95
10 mg / vialBest €/mg€349.00€34.90€3.49

What is Oxytocin?

Oxytocin is a cyclic nonapeptide hormone synthesized in the hypothalamus, signalling via OXTR. Research spans social-behaviour neuroscience and reproductive physiology.

Mechanism of action

Agonist at the oxytocin receptor (OXTR); CNS and peripheral signaling.

Primary research areas

Social behaviour, parturition and lactation research models.

Research notes

  • Very short plasma half-life shapes acute-exposure research designs.

Third-party COA — testing in progress

Pending
The current Oxytocin batch is with our independent laboratory (Janoshik Analytical / VidaLabs) for HPLC + Mass Spectrometry analysis. Published COAs for previously-tested compounds are available in our full COA library.

Need the batch-specific COA for your order? Email support@regena-peptides.com — we'll send it as soon as the lab returns the report (typically 5–10 business days after shipment).

Why researchers buy from Regena

HPLC ≥99% purity

Every batch independently tested. Mass spectrometry verification on every research compound. COAs on request.

10-vial kits, properly sealed

Lyophilized peptide, rubber-stoppered amber vials, batch-coded. Stable for shipping; cold storage on arrival.

Ships from Spain, EU-wide

Tracked delivery 2–5 working days across the EU. Discreet, plain packaging. UK & worldwide options.

Secure SEPA bank transfer

Encrypted checkout, verified IBAN. No card details stored. Card payment links available on request.

How ordering works

  1. 1

    Pick your Oxytocin kit above

    Each kit contains 10 vials. Choose your strength — bigger vials give you a lower €/mg.

  2. 2

    Secure checkout in under 2 minutes

    Add to cart, fill in shipping, get your IBAN and order reference instantly.

  3. 3

    Pay by bank transfer (or card on request)

    Bank transfer is fastest and fee-free. Need a card? Message us on WhatsApp and we'll send a payment link.

  4. 4

    We ship within 24 hours

    You get a tracking number by email + WhatsApp. EU delivery 2–5 working days. COA included on request.

Frequently asked questions

Research-use disclaimer

Information on this page is provided for educational and scientific reference purposes only. Oxytocin is a research compound intended for in-vitro laboratory investigation by qualified professionals. Nothing here constitutes medical advice, dosing guidance or a recommendation for human or veterinary use. Half-life and mechanism descriptions reflect published literature approximations.

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30-page PDF — vial handling, sterile reconstitution, dosing math, cold-chain storage. Plus a daily research insight email from the lab.

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Oxytocin — shipped to research hubs worldwide

Same HPLC-verified Oxytocin batch, same COA — tracked delivery to laboratories and independent researchers across Europe, the UK, the USA and beyond. Pick a hub for local shipping window and currency notes.

View every research hub we ship to →Browse the full peptide librarySite index

Customer reviews

What researchers say about Oxytocin

4.9· 8 reviews
  • Verified

    COA matched batch number exactly

    Ordered three batches of BPC-157 over four months. Each shipment arrived cold-packed with a COA and the batch numbers cross-checked against the public testing database. Purity reported between 98.7% and 99.2% — consistent with what we measured in-house by HPLC.

    Dr. M. AnderssonStockholm, Sweden
  • Verified

    Fast UK delivery, clean reconstitution

    Discreet packaging, arrived in 48 hours to London. Lyophilised cake was firm, dissolved completely in bac water with no cloudiness. Dose math in IU on the calculator made repeat dosing trivial.

    J. WhitmoreLondon, UK
  • Verified

    Best documentation I've seen from a supplier

    We compared three suppliers as part of a sourcing audit. Regena was the only one with chromatograms, retention times and lab-named COAs published per batch. That's the standard the rest of the industry should meet.

    Prof. L. RomanoMilan, Italy
  • Verified

    Good product, customs took an extra day

    Product itself is excellent — clean reconstitution, COA available. Customs added 24 hours which is outside Regena's control. Support replied within an hour when I asked for an update.

    K. PetersenCopenhagen, Denmark
  • Verified

    Independent lab agreed with stated purity

    We sent a sub-sample to an independent lab. Their result was within 0.4% of the published Regena COA. That's a level of transparency you almost never see in research-peptide sourcing.

    Dr. S. PatelBirmingham, UK
  • Verified

    Cold chain held the whole way

    Temperature indicator strip in the package stayed in the green. Vials still chilled on arrival despite a 3-day route. Whoever packs these boxes knows what they're doing.

    A. MüllerBerlin, Germany

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Cite this reference

Researching Oxytocin?

Copy a ready-made citation or HTML link. Backlinks from research blogs, lab wikis and biohacker communities help others find verified peptide sources.

Regena Peptides. (2026-07-18). Oxytocin — HPLC-verified research peptide. https://www.regena-peptides.com/peptides/oxytocin

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