Melanotan II 20
The melanocortin agonist Melanotan II, 20 mg per click pen, studied in pigmentation research. Each click delivers 67 µg from a 3 mL · 300-click pen.
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how many clicks
for your dose?
This Melanotan II 20 pen holds 20 mg across 300 clicks, so each click delivers 67 µg. Tap a dose or turn the dial; we'll count the clicks. For research reference only.
why researchers chose this pen
chose it for the click dosing, no syringes, no unit maths.
verified purity, checked against the public CoA before first use.
precise clicks in every 3 mL pen, the whole protocol in one barrel.
re-order or refer a colleague within three months.
about the
Melanotan II 20 pen
Melanotan II is a melanocortin-receptor agonist, supplied in a 3 mL / 300-click pen for pigmentation research. (Placeholder price, pending confirmation.)
Certificate of analysiswhy a pen beats
a vial & syringe
Traditional research peptides arrive as lyophilised powder that must be reconstituted, drawn into insulin syringes, and converted from milligrams to units by hand, every step a chance for a dosing error.
A multi-dose pen removes the whole failure chain. The peptide arrives already dissolved and calibrated. Attach a fresh needle, turn the dial until you count your clicks, and you're done, the same audible-click mechanism trusted in insulin and GLP-1 pens worldwide.
Pens travel and store better, too: no open vials, no bent needles, no septum contamination after repeated draws. One sealed barrel, ten sterile needles, one dosing card.
how to buy
peptides safely
The peptide market has a purity problem: independent surveys routinely find underdosed, mislabelled or contaminated product sold online. The only reliable defence is third-party verification you can check yourself, not a supplier's own claims.
Before buying any peptide pen, ask three questions. Is every batch tested by an independent lab? Is the certificate of analysis available, so you can check your exact lot before first use? And does it ship cold-chain, insulated and gel-packed, so what was tested is what arrives?
Veyvora answers yes on every order, independent assay, a CoA on request against the batch number, and cold dispatch within 24 hours, paperwork packed inside.
pairs well with
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Overview
| Attribute | Detail |
|---|---|
| Product | Melanotan II 20 mg Research Pen |
| Labelled fill | 20 mg per pen |
| Format | Multi-dose research pen, 3 mL, 300-click |
| Supply basis | In-vitro laboratory research use only |
Veyvora’s Melanotan II 20 mg Research Pen is a 3 mL, 300-click multi-dose pen containing 20 mg of Melanotan II (CAS 121062-08-6), specified at approximately 67 micrograms per click, supplied strictly for in-vitro laboratory research use and not for human or veterinary administration (Veyvora product specification, 2026). Melanotan II is a synthetic cyclic heptapeptide analogue of α-melanocyte-stimulating hormone (α-MSH) [1]. The pen holds no UK marketing authorisation and does not appear on the Medicines and Healthcare products Regulatory Agency (MHRA) register as an approved medicine; regulatory status varies by region, so researchers must confirm applicable local requirements before ordering [2].
Each pen ships with a batch-linked certificate of analysis (CoA). Confirm current GBP pricing, stock status and delivery terms directly from the live Veyvora en-GB product page, dated to the day of purchase, as these figures are not reproduced here.
This page covers how the pen’s specifications are structured and what each parameter means; what a valid batch CoA must contain and how to match it to your unit; and what ordering, handling and regulatory steps apply before commencing any in-vitro work.
Key Takeaways
- The pen contains 20 mg of Melanotan II (CAS 121062-08-6) across 300 clicks, giving a nominal delivery of approximately 67 µg per click.
- Supply is strictly for in-vitro laboratory research use only, not for human or veterinary administration.
- Melanotan II holds no MHRA marketing authorisation; researchers must verify local regulatory requirements before ordering [2].
- A batch-linked CoA must be retrieved from Veyvora and matched to the lot number on the pen before any in-vitro work begins.
- GBP price, stock status and delivery terms must be confirmed from the live Veyvora en-GB product page on the day of purchase.
Product Identity and Scope
The Veyvora Melanotan II 20 mg Research Pen contains 20 mg of Melanotan II (CAS 121062-08-6) in a 3 mL, 300-click multi-dose pen. The active substance is a synthetic cyclic heptapeptide analogue of α-MSH with the sequence Ac-Nle-c[Asp-His-D-Phe-Arg-Trp-Lys]-NH₂, supplied strictly for in-vitro laboratory research use and not for human or veterinary administration [1]. For the underlying melanocortin-receptor mechanism and evidence context, see Melanotan II research explained.
Melanotan II holds no UK marketing authorisation and does not appear on the MHRA register as an approved medicine. Regulatory status varies by region, so researchers must confirm applicable local requirements before ordering [2]. The labelled fill of 20 mg across 300 clicks gives a nominal delivery of approximately 67 micrograms per click, based on the Veyvora product specification (2026). Current GBP pricing, stock status and delivery terms are not reproduced here; confirm these figures directly from the live Veyvora en-GB product page, dated to the day of purchase.
Verified Specifications
The table below lists only parameters drawn from the Veyvora product specification (2026). Per-click delivery is calculated from labelled fill and click count; the result is a nominal figure, not a measured lot result.
Format and Fill
| Parameter | Stated value | Source |
|---|---|---|
| Total peptide content | 20 mg | Veyvora product specification, 2026 |
| Fill volume | 3 mL | Veyvora product specification, 2026 |
| Click count | 300 | Veyvora product specification, 2026 |
| Nominal delivery per click | ~67 µg | Calculated: 20 mg ÷ 300 clicks |
| Presentation format | Multi-dose research pen | Veyvora product specification, 2026 |
Values Requiring Operator Confirmation
The following parameters are not reproduced here because they could not be verified from a live, dated batch document at the time of writing: declared purity (% by high-performance liquid chromatography, HPLC), residual solvent levels, endotoxin specification, fill-weight tolerance and solvent or excipient composition. Operators must confirm each figure directly from the current Veyvora en-GB product page or the batch-linked CoA before publication. Do not substitute generic peptide industry thresholds for lot-specific data.
Batch Documentation and Analytical Evidence
A batch-linked CoA is the only document that can confirm the identity, purity and quality attributes of the specific unit in a researcher’s hand. A marketing banner, a forum post, or a generic “≥98% purity” statement on a product listing is not proof of the lot being shipped; such statements are policy claims, not lot-specific results.
What a Valid CoA Should Cover
For a research peptide such as Melanotan II (CAS 121062-08-6), a meaningful CoA names the analytical methods applied to that lot, typically HPLC for identity and purity, mass spectrometry (MS) for molecular confirmation, and an endotoxin assay, and states the result against a defined acceptance criterion. ICH Q6B (1999) sets out the framework for what a biotechnological or biological specification should address (identity, purity, impurities, quantity and other quality attributes), though the framework is not a Melanotan II monograph and does not validate any individual supplier’s batch.
Veyvora Batch Documentation
Veyvora states that each batch is tested by two independent laboratories using HPLC, MS and endotoxin assay, with a published CoA to check against the batch number before first use (Veyvora quality documentation, 2026). No specific HPLC chromatogram, MS result, endotoxin figure or fill-weight tolerance for a Veyvora Melanotan II 20 mg pen has been independently verified from a live batch document at the time of writing; operators must retrieve the current CoA directly from Veyvora and match the lot number printed on the pen or carton before use. Where the document names an accredited laboratory, record that laboratory’s name and the report date exactly; do not infer MHRA, United Kingdom Accreditation Service (UKAS) or Ph. Eur. certification unless those names appear on the document itself.
For a detailed explanation of what HPLC purity does and does not prove, see how HPLC purity is measured. To match a pen’s batch number to its published certificate, follow the steps at verify a batch against its CoA.
Handling and Storage
Storage and handling conditions for the Veyvora Melanotan II 20 mg Research Pen must be taken from the current product label, insert or structured data sheet. No temperature range, in-use period or stability figure has been independently verified from a live Veyvora document at the time of writing, and none is reproduced here. Operators must retrieve the labelled conditions directly from Veyvora before receipt and confirm that the shipment’s temperature indicator strip shows no excursion on arrival.
Veyvora states that orders are dispatched in insulated, gel-packed 2–8 °C mailers with a temperature indicator strip (Veyvora fulfilment specification, 2026). Confirm current shipping terms with Veyvora before placing an order, as cold-chain specifications are subject to change and those figures reflect the supplier’s stated policy rather than independently verified logger data.
Laboratory Receipt Checklist
On receipt, record the following before proceeding with any in-vitro work:
- Confirm the temperature indicator strip shows no excursion from the labelled range.
- Match the lot number printed on the pen or carton to the published CoA.
- Note the labelled fill (20 mg) and any in-use period stated on the insert.
- Store the pen under the conditions printed on the current label; do not infer conditions from general peptide practice.
- Document the receipt date, lot number, storage location and the name of the person accepting delivery in the laboratory record.
- Retain the original packaging and temperature strip as part of the batch record.
For broader guidance on maintaining peptide integrity from dispatch to bench, see research-peptide storage guidance.
Ordering Information
Price, stock level, minimum order quantity, VAT treatment and UK delivery window for the Melanotan II 20 mg Research Pen are not reproduced here; none were verified from a live Veyvora en-GB checkout at the time of writing. Retrieve current figures directly from the Veyvora United Kingdom product page and record the date of capture before placing or publishing an order.
What to Confirm Before Ordering
Verify the following from the live en-GB page before proceeding:
- Current GBP price inclusive of VAT, with the date the figure was retrieved
- Stock status and any minimum order quantity applicable to laboratory or distributor accounts
- Cut-off time for same-day dispatch and the courier service used for cold-chain shipments
- Any research-use declaration or know-your-customer requirement Veyvora operates at checkout
- Export or destination controls that apply to your institution’s jurisdiction
- Whether a signed research-use agreement is required before the order is processed
Melanotan II is not licensed as a medicine in the United Kingdom under the Human Medicines Regulations 2012, so orders must be placed on a research-use basis only [2]. Once the pen’s lot number is confirmed, verify a batch against its CoA before commencing any in-vitro work.
Research-Use-Only Limitations
The Melanotan II 20 mg Research Pen is supplied strictly for in-vitro laboratory research use only and must not be used in, or presented as suitable for, human or veterinary administration, diagnostic procedures, or therapeutic applications. Melanotan II is not licensed as a medicine in the United Kingdom under the Human Medicines Regulations 2012, and no MHRA marketing authorisation exists for tanning, pigmentation, or any other therapeutic application [2].
Regulatory status varies by region, and prospective distributors must assess destination controls independently before placing an order. The research-use-only designation on a product listing does not override medicines law: the MHRA evaluates medicinal status by presentation and function as well as by explicit claims, meaning a pen-style injector format carries inherent regulatory risk if supplied or promoted outside a verified laboratory procurement context [2]. Cancer Research UK has noted that melanotan injections are illegal and possibly unsafe when used outside controlled research settings [3].
No dosing protocols, reconstitution volumes, administration steps, or outcome references appear on this page.
Related Research and Comparison Pages
Before placing an order, confirm the Melanotan II 20 mg Research Pen’s batch number against its published certificate. The guide to verify a batch against its CoA sets out the exact matching procedure without requiring any claims on this page to be taken on trust. For a precise account of what HPLC purity measurement does and does not establish for a given lot, the how HPLC purity is measured page supplies the methodological detail.
For a like-for-like melanocortin comparison, the PT-141 versus Melanotan II comparison contrasts the two peptides on identity, format and research scope. Comparison across Veyvora’s in-vitro peptide catalogue, which includes lyophilised vials, pre-filled cartridges and multi-dose pens, is limited to labelled fill, document pack and stated storage conditions drawn from live en-GB pages. No comparison on this page extends to efficacy, biological outcome or potency ranking. Where a matching en-GB comparison URL is not available for a given SKU, that link is omitted rather than substituted with another locale’s listing.
Sources
[1] Melanotan II | C50H69N15O9 | CID 92432, PubChem; see also: Bhardwaj R et al. (1996), https://pubmed.ncbi.nlm.nih.gov/8637402/
[2] Human Medicines Regulations 2012 (SI 2012/1916), legislation.gov.uk, https://www.legislation.gov.uk/uksi/2012/1916/contents/made
[3] Cancer Research UK News (2009), Melanotan injections are illegal and possibly unsafe, https://news.cancerresearchuk.org/2009/01/28/melanotan-injections-are-illegal-and-possibly-unsafe/
