Body Pharm Melanotan II 20 Pen: Buy Now on JCSG.org — Full UK Spec & Guide
The Body Pharm Melanotan II 20 Pen is a pre-mixed, multi-dose injection device available now from JCSG.org for UK researchers. It delivers 20 sequential actuations of MT-II solution without reconstitution, making it the highest-convenience pen format available in our UK catalogue. MT-II is a cyclic lactam synthetic analogue of α-melanocyte stimulating hormone (α-MSH) and a non-selective melanocortin receptor agonist [9] — the reference compound for melanocyte biology research. Order directly via the buy box above and receive your pen dispatched to your UK address.
This guide covers the full technical specification, melanocortin pathway context, pen-vs-vial considerations, purity and COA requirements, and UK regulatory status — everything you need to confirm this is the right SKU for your protocol before you add it to your cart.
Key Takeaways
- Body Pharm's 20-dose pen offers mechanical consistency for fixed-dose protocols — available to order now on JCSG.org via the buy box above
- Pre-mixed pens suit multi-week fixed-dose research; lyophilised vials remain more flexible for variable-dose or high-volume work
- Request batch-specific COA, per-click µg output, and cold-chain confirmation in writing before committing to any purchase order
- JCSG.org is your direct UK source — check the current price in the buy box above and add to cart today
- For laboratory research use only. Not licensed for human administration.
What Is the Body Pharm Melanotan II 20 Pen?
The Body Pharm Melanotan II 20 Pen is a pre-filled, multi-dose injection device supplied for in vitro research use. It dispenses a fixed volume of Melanotan II (MT-II) solution across 20 sequential actuations without reconstitution. MT-II is a cyclic lactam synthetic analogue of α-melanocyte stimulating hormone (α-MSH) and acts as a non-selective melanocortin receptor agonist [9]. This seven-amino-acid cyclic peptide structure confers stability against enzymatic degradation compared to linear peptide formats, which is why MT-II remains the standard comparator in melanocyte research protocols.
The pen format removes the lyophilised-powder reconstitution step associated with vial-based MT-II products. Lab procurement teams typically weigh this convenience against the loss of dose-titration flexibility that a vial-and-syringe workflow allows. Contact Body Pharm directly via bodypharm.co.uk to request the batch-specific datasheet and per-actuation concentration for your records.
Regulatory status in the UK is unchanged: MT-II holds no marketing authorisation from the MHRA and is treated as an unlicensed medicinal product when presented for human use [8]. Body Pharm sells the pen on a research-chemical basis only. Ready to order? Use the buy box above to purchase now on JCSG.org. For mechanistic background and assay context, see our Melanotan 2 research overview, or browse our full UK peptides range for adjacent melanocortin agonists.
Full Technical Specification of the 20-Dose Pen
The Body Pharm Melanotan II 20 Pen ships as a pre-mixed, multi-dose injection device. The specification block below summarises the confirmed parameters for this SKU. Contact the supplier to obtain a batch-specific datasheet before finalising your protocol. Then place your order through the buy box above — JCSG.org handles UK dispatch directly.
Product parameters
| Parameter | Value | Source / status |
|---|---|---|
| Peptide identity | Melanotan II, cyclic lactam α-MSH analogue (Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH₂) | Confirmed against compound card [11] |
| Molecular weight | ~1024.18 Da | Confirmed [11] |
| Receptor profile | Non-selective melanocortin receptor agonist (MC1R, MC3R, MC4R, MC5R); quantitative Ki/EC50 values not stated in 2024–2026 catalogue entries [11] | Confirmed (qualitative only) |
| Total peptide content per 20-dose pen | Not published on public documentation; request batch datasheet from supplier | Confirm with supplier |
| Concentration per actuation | Not published on public pages; request from manufacturer before protocol finalisation | Confirm with supplier |
| Carrier solution | Composition not disclosed publicly; bacteriostatic water (0.9% benzyl alcohol) is the standard convention for multi-dose peptide pens | Confirm with supplier |
| Actuation mechanism | Dial-and-click multi-dose pen format (inferred from “20 pen” SKU naming) | Confirm with supplier |
| Storage – unopened | Body Pharm in-use shelf life not publicly stated; GenScript's generic MT-II datasheet recommends −20 °C for lyophilised peptide [8] | Confirm with supplier |
| Storage – in-use | Industry convention for pre-mixed peptide pens is 2–8 °C, protected from light | Confirm with supplier |
| Sterility / fill standard | Confirm endotoxin limit, sterile-fill class, and bioburden testing with supplier at order stage | Confirm with supplier |
| Analytical QC | Request HPLC purity figure and batch COA directly from supplier at time of order | Confirm with supplier |
Where a row reads “confirm with supplier,” request that parameter in writing from Body Pharm before committing to your protocol. For the mechanistic basis underpinning the receptor profile in row three, see the Melanotan 2 research overview. Adjacent melanocortin agonists are listed across our full UK peptides range. Add the Body Pharm MT-II 20 Pen to your cart now.
Melanocortin Pathway: Why Pen Format Matters for Research
Melanotan II is a synthetic cyclic heptapeptide agonist at the melanocortin receptors MC1R and MC4R. MC1R activation drives melanogenesis in cutaneous and ex vivo melanocyte models. MC4R activation underpins central nervous system and feeding-behaviour research paradigms [4]. Receptor occupancy at MC1R elevates intracellular cAMP via Gαs coupling, which in turn drives microphthalmia-associated transcription factor expression and tyrosinase activity in melanocyte assays. MT-II remains the reference compound for studying melanocyte biology in vitro because of this signalling cascade. Public catalogue entries from 2024 describe MT-II as a potent non-selective melanocortin agonist but do not publish Ki or EC50 values. Any quantitative affinity figure used in a study protocol should be sourced from the original receptor pharmacology literature rather than vendor pages [4].
For deeper mechanistic context on these receptor interactions, see the Melanotan 2 research overview.
Why the delivery format is an experimental variable
Reconstituting lyophilised MT-II from a vial introduces three controllable but frequently uncontrolled sources of variance:
- Operator pipetting accuracy when adding bacteriostatic water
- Mixing-induced peptide aggregation
- Dose-to-dose volume drift across a multi-day protocol
A pre-mixed dial-and-click pen removes the reconstitution step entirely and fixes the delivered volume per actuation to a mechanically defined increment. That is the principal reason procurement teams running repeated-dose in vitro or ex vivo melanocyte work increasingly specify the pen SKU over the vial. Mechanical consistency reduces inter-assay variability, particularly when the same operator runs multiple independent replicates across weeks.
The pen format also reduces septum-puncture frequency relative to drawing 20 separate doses from a single open vial, which lowers bioburden ingress risk over the in-use window. That matters most for protocols extending beyond seven days at 2–8 °C, where cumulative contamination probability rises with each needle entry. Order the Body Pharm MT-II 20 Pen from JCSG.org today — see the current price in the buy box above and dispatch your order to your UK lab. Adjacent melanocortin-active compounds with comparable pen or vial formats are catalogued across our full UK peptides range.
Body Pharm Melanotan II 20 Pen: Specification Summary
The Body Pharm Melanotan II 20 Pen is the only 20-actuation pre-mixed MT-II pen available through JCSG.org. The table below consolidates the key specification data and flags parameters to confirm with the supplier at order stage.
| Specification | Body Pharm Melanotan II 20 Pen | Action required |
|---|---|---|
| Doses per pen | 20 | Confirmed |
| Peptide content per pen | Not publicly published — request batch datasheet | Confirm with supplier |
| Concentration per dose | Not publicly published — request batch datasheet | Confirm with supplier |
| Carrier solution | Not disclosed in public sources | Confirm with supplier |
| Stated purity | Vendor claim ≥99% (not independently verified) | Request batch COA |
| COA availability | Request at order stage | Confirm with supplier |
| Current price (UK) | See buy box above on JCSG.org | Add to cart |
| UK shipping | Dispatched to UK addresses — confirm cold-chain terms at order | Confirm with supplier |
Why the 20-dose count matters
The 20-actuation pen halves the septum-puncture frequency compared to a single-vial workflow and supports longer multi-week dosing protocols without opening a second device. If you are running a protocol longer than two weeks, the pen format is the logical procurement choice. Order yours now — check the current JCSG.org price above.
For mechanistic background underpinning these product specifications, see the Melanotan 2 research overview. For adjacent comparators within the catalogue, our full UK peptides range lists every current SKU.
Pen vs Vial: Which Format Suits Your Research Protocol?
Pre-mixed pens suit fixed-dose multi-week protocols. Lyophilised vials suit variable-dose or high-volume research where unit cost and long-term stability dominate the decision. The trade-offs below cover the questions research buyers raise most often when evaluating a Body Pharm Melanotan II pen against a conventional vial format. Both formats are available through JCSG.org — see the full UK peptides range for the complete listing.
Reconstitution and dosing precision
A lyophilised vial requires bacteriostatic water, a sterile syringe, and a concentration calculation before the first draw. A pre-mixed pen ships ready-to-actuate, with fixed-volume clicks set at manufacture. This removes arithmetic error from the workflow but removes the operator's ability to vary concentration mid-study. For Body Pharm specifically, the exact µg per actuation should be confirmed with the supplier before protocol commitment. Any protocol that depends on a known per-click figure must obtain that figure in writing at order stage.
Storage, stability, and contamination
Lyophilised peptide is generally stored at −20 °C and is the more stable long-term presentation. Reconstituted solution in a pen is held at 2–8 °C with a shorter open shelf life [4]. A sealed pen reduces repeated septum entry, lowering cumulative contamination risk across a 20-actuation run compared with twenty separate needle punctures into a vial stopper. The pen's open-use window is fixed by the carrier system. Confirm carrier composition and benzyl alcohol percentage with Body Pharm at order stage.
Cost-per-dose at scale
Vials typically deliver a lower unit cost on high-volume protocols because the same lyophilised mass can be reconstituted at whatever concentration the protocol requires. Pens recover that gap on labour: no reconstitution time, no calculation review, no second-operator sign-off on dilution. For a 20-actuation fixed-dose study running over three to four weeks, the pen format is the lower-friction choice. See the current JCSG.org price in the buy box above. For parallel dose-ranging across several concentrations, vials from our full UK peptides range remain the more flexible procurement line.
Purity, COA, and Quality Assurance: What to Check
A research-grade peptide pen COA should state:
- HPLC purity percentage
- Mass spectrometry confirmation of the molecular weight (1024.18 g/mol for MT-II free base)
- Endotoxin assay result in EU/mg
- Microbial limit or bioburden figure
- Batch number, manufacture date, and expiry
ICH Q6A (originally adopted 1999, still the reference framework cited by analytical labs in 2026) sets the structural expectation for those release specifications. Any vendor certificate omitting one of those fields is incomplete, not acceptable-with-caveats. Incomplete COAs create gaps in traceability when regulatory bodies or institutional auditors review research records.
Request the batch-specific COA tied to the exact batch number on your pen at order stage from Body Pharm. A generic catalogue claim is not a batch-specific certificate. Confirm the COA is linked to the exact batch number printed on the pen housing, not a representative document from a prior production run. If you have questions about documentation before ordering, contact JCSG.org via the site — then proceed to checkout.
Reading an HPLC trace for MT-II
A clean MT-II trace shows a dominant single peak with retention time consistent with the reference standard. The integrated area should account for ≥99% of total UV absorbance at 220 nm. Shoulder peaks, early-eluting hydrophilic impurities, or a secondary peak at roughly +16 Da on the paired MS spectrum indicate oxidised methionine or des-amido degradants. The accompanying MS should return [M+H]+ at 1025.2 within instrument tolerance. These markers matter because oxidised MT-II may have altered receptor affinity, which would skew assay results without any obvious visual warning.
Independent verification and due diligence
JCSG does not independently audit vendor COAs or re-run analytics on third-party pen products. Nothing on this page should be read as certification of any supplier's claims. Procurement teams should retain originals and cross-reference batch numbers against delivery paperwork. Where in-house capacity allows, commission an independent HPLC re-test. Wider context on peptide release testing sits in our editorial piece on protein structures to peptide therapeutics reference. The Melanotan 2 research overview covers mechanistic background relevant to spec interpretation.
UK Regulatory Status of Melanotan II in 2026
Melanotan II is an unlicensed medicinal substance in the UK and is not approved by the MHRA for human use. It is not a controlled drug under the Misuse of Drugs Act 1971 [9]. UK sale is therefore lawful only as a research chemical for in vitro and laboratory work, with no permitted route to administration to humans absent a marketing authorisation. Unlicensed status does not equal illegality — it means the substance falls outside the licensing framework but remains subject to MHRA enforcement if marketed for human therapeutic or cosmetic claims.
The MHRA's general position, set out across its unlicensed medicines guidance (gov.uk, updated 2020–2023), is that any product presented for human administration as a medicinal product requires a marketing authorisation. MT-II holds none [8]. Trading Standards and the MHRA have historically taken enforcement action against vendors marketing Melanotan for tanning or sexual-enhancement claims. Any product page or accompanying paperwork implying cosmetic or therapeutic benefit invites regulatory attention regardless of a “research use only” label. MT-II does not appear in the schedules of the Misuse of Drugs Act 1971 or the Misuse of Drugs Regulations 2001 as consolidated to 2024 [9][10].
Institutional procurement staff should clear any purchase through their organisation's research governance, ethics, or COSHH office before raising a purchase order. Retain documentation linking the order to a defined in vitro protocol. For mechanistic context that should accompany internal justification papers, see our Melanotan 2 research overview. Broader SKU context sits within our full UK peptides range.
Regulatory disclaimer
For laboratory research use only. Melanotan II is not licensed as a medicine in the UK and must not be administered to humans or animals. This page publishes technical specification and procurement data; it does not constitute medical, safety, or efficacy advice. Buyers are responsible for compliance with MHRA guidance and institutional governance requirements.
Ordering, Shipping, and Storage: Practical Guidance
Order the Body Pharm Melanotan II 20 Pen directly on JCSG.org — use the buy box at the top of this page, check the current price, and proceed to checkout. JCSG.org handles UK dispatch; confirm cold-chain packaging details with the supplier at order stage. Dispatch time and courier should be confirmed before raising a purchase order.
On receipt, store the pen at 2–8 °C, upright, away from direct light. Generic peptide handling guidance recommends −20 °C for lyophilised stock [3]. A pre-mixed pen should not be frozen once reconstituted; refrigeration is the working compromise. Treat the printed expiry on the device as the unopened limit and apply a conservative 28-day in-use window after first actuation unless the supplier confirms otherwise in writing.
If the pen arrives warm, leaking, cloudy, or with a broken seal, photograph the parcel and contents. Quarantine the unit and contact the vendor before any use. Do not actuate a device that has breached cold chain.
Institutional purchase considerations
UK VAT at 20% applies to research chemicals and should appear as a separate line on the invoice. Request a VAT invoice naming the institution, a PO reference field, and a batch number against each unit for traceability into COSHH records. For bulk orders of five units or more, contact JCSG.org before checkout to discuss availability. Ready to order now? Add to cart on JCSG.org. Cross-check current availability against the Melanotan 2 research overview and our full UK peptides range at the point of procurement.
Related Peptide Research Tools at JCSG
JCSG's UK catalogue stocks several other Body Pharm multi-dose pens alongside the Melanotan II 20-dose unit, which supports buyers running parallel peptide research programmes. Current pen-format products in the range include BPC-157, TB-500, NAD+, MOTS-C, Semaglutide, and Tirzepatide, each with its own technical specification page. Browse and buy all of them on JCSG.org via our full UK peptides range.
For procurement teams consolidating suppliers, the Body Pharm NAD+ 1000 pen and Body Pharm MOTS-C 32 pen sit in the same multi-dose device family as the MT-II unit reviewed here. Adjacent tissue-repair research tools are documented on the BPC-157 and TB-500 pages. The full UK peptides range acts as the index.
Background reading on receptor-ligand methodology sits in our editorial piece on understanding protein–peptide interactions, which contextualises the structural rationale behind melanocortin agonist design.
Frequently Asked Questions
Melanotan II products sit in a constrained UK regulatory position. Several technical questions recur from procurement teams evaluating the Body Pharm pen. The answers below summarise the current public position as of 2026. Figures marked verify on product page should be confirmed against the live Body Pharm specification sheet at the time of order. Order via the buy box above on JCSG.org.
Is the Body Pharm Melanotan II 20 Pen legal to buy in the UK?
Melanotan II is not a controlled drug under the Misuse of Drugs Act 1971 or the Misuse of Drugs Regulations 2001 [8][9]. The MHRA treats it as an unlicensed medicinal product when supplied for human administration. Sale for laboratory research use is the route UK suppliers operate under. Sale or marketing for tanning remains subject to MHRA enforcement. You can legally purchase the pen for in vitro work through JCSG.org, but any marketing claim linking it to human cosmetic or therapeutic benefit would breach MHRA guidance.
How many micrograms does each pen actuation deliver?
The per-click dose should be confirmed with Body Pharm at order stage before protocol finalisation. Request the current specification sheet directly from the distributor. Without this figure, you cannot calculate a precise dose for your protocol. Once confirmed, place your order on JCSG.org.
Does the pen require refrigeration?
Generic peptide-handling guidance recommends storing lyophilised Melanotan II at −20 °C and keeping reconstituted solutions cold and short-dated [1]. Treat 2–8 °C storage after first actuation as the working assumption pending manufacturer confirmation. Freezing a pre-mixed pen risks ice-crystal formation and peptide aggregation. Confirm pen-specific stability data with Body Pharm at the time of order.
What is the difference between Melanotan I and Melanotan II?
Melanotan I (afamelanotide) is an MC1R-selective melanocortin agonist. Melanotan II is a non-selective agonist active across MC1R, MC3R, MC4R, and MC5R [10]. This difference matters for assay design. If your protocol targets MC1R-driven melanogenesis specifically, MT-I is the more selective tool. If you need broader melanocortin pathway activation, MT-II is the standard. Mechanistic background is set out on the Melanotan 2 research overview. Order the MT-II pen from JCSG.org using the buy box above.
Can I request a batch-specific COA for the Body Pharm pen?
Request batch documentation at quotation stage from Body Pharm. A batch-specific COA is non-negotiable for institutional procurement. If the supplier cannot provide one, escalate the request to a senior contact. Once you have your COA, complete your purchase on JCSG.org — check the current price in the buy box above. See our full UK peptides range for the complete Body Pharm catalogue available through JCSG.org.
Next Steps: Order Now on JCSG.org
Ready to buy the Body Pharm Melanotan II 20 Pen? Use the buy box at the top of this page to check the current UK price and add to cart. Before raising a formal purchase order for institutional procurement, take these actions:
- Use the buy box above to confirm the current price and add the Body Pharm Melanotan II 20 Pen to your JCSG.org cart.
- Request a batch-specific COA from Body Pharm or the reseller, including HPLC purity percentage, molecular weight confirmation, endotoxin assay, and batch number.
- Obtain written confirmation of the per-actuation µg dose and carrier solution composition.
- Confirm cold-chain packaging and UK dispatch SLA in writing.
- Clear the purchase through your institution's research governance, ethics, or COSHH office and retain documentation linking the order to your defined in vitro protocol.
- Cross-check current availability against our full UK peptides range at the point of procurement.
Order the Body Pharm Melanotan II 20 Pen on JCSG.org now — check the current price in the buy box above and proceed to checkout.
