Body Pharm Melanotan II 20 Pen: Dosing Guide & Review

The Body Pharm Melanotan II 20 Pen is a prefilled, dial-a-dose tanning-peptide device sold in South Africa. Its cartridge is independently assayed at 7.4 mg/mL and 99.37% purity, but Body Pharm does not publish a micrograms-per-click (mcg-per-click) figure for the pen’s dial mechanism. Because the delivered volume per click is not specified, you still back-calculate practical dosing from the known concentration and cartridge volume — which is exactly what this guide covers.

Key Takeaways

The pen holds 20 mg of Melanotan II by label; its certificate of analysis reports 7.4 mg/mL (22.2 mg total peptide per 3 mL) at 99.37% purity, with no manufacturer-published mcg-per-click spec, so per-dose amounts are back-calculated.
A commonly described three-phase routine runs tolerance (~100 mcg daily for 3–5 days), loading (250–500 mcg daily for 1–3 weeks), and maintenance (100–250 mcg twice weekly). These are community-derived ranges, not clinically validated doses.
The pen format removes reconstitution and reduces waste versus vials, but the side-effect profile (nausea, flushing, priapism, mole changes) is the same as vial-delivered Melanotan II.
Melanotan II is not registered with SAHPRA and is not an approved medicine in South Africa; regulators including Australia’s TGA warn against its use.
Serious adverse events reported in the medical literature include priapism, melanoma, systemic toxicity and rhabdomyolysis; dermatology screening before and during use is essential.

Melanotan II is not a SAHPRA-registered medicine, and Australia’s Therapeutic Goods Administration urges consumers not to use tanning products containing melanotan. Read accordingly.

What Is the Body Pharm Melanotan II 20 Pen?

The Body Pharm Melanotan II 20 Pen is a prefilled, no-mix subcutaneous injection pen containing synthetic Melanotan II in solution, sold in South Africa by Beskinny. Because the peptide arrives already in solution, you skip the bacteriostatic-water-and-vial reconstitution step that vial users handle and dial doses directly from the pen.

What’s in the box and what it does:

Active: Melanotan II, a synthetic cyclic analogue of alpha-melanocyte-stimulating hormone (α-MSH).
Assay: 99.37% purity, 7.4 mg/mL, 22.2 mg total peptide per 3 mL cartridge (HPLC, batch MT20034).
Format: Prefilled dial-a-dose pen, solution form, no reconstitution.
Mechanism: Activates melanocortin receptors. MC1R drives melanogenesis (pigmentation), while activity at MC4R in the brain is linked to the erectile and appetite effects documented in human studies. Receptor behaviour specific to this pen-format product has not been studied in peer-reviewed trials.
Regulatory status: Not registered with SAHPRA. No approved Melanotan II product exists under the FDA or EMA. The TGA publicly warns against melanotan tanning products.

Cross-shopping the Body Pharm pen range? The Body Pharm CJC1295 & Ipamorelin 20 Pen and Body Pharm MOTS-C 32 Pen use the same prefilled dial-a-dose hardware, so the back-calculation method covered later in this guide carries over.

Pen vs. Vial: Why Format Matters for MT-II

The pen wins on reconstitution, dosing accuracy and waste because the cartridge arrives ready to inject and delivers consistent micro-increments per click. The vial wins on per-mg cost and dose flexibility above 1 mg because you can draw any volume from a larger reservoir. No peer-reviewed pharmacokinetic study has compared pen-delivered MT-II to vial-delivered MT-II, so the comparison below draws from the product specification and community-reported protocols.

Reconstitution required — Vial: yes, you mix lyophilised powder with bacteriostatic water, and wrong-volume errors directly shift your mcg-per-unit on the insulin syringe. Pen: no, the Body Pharm 20 Pen ships as a solution.

Dosing accuracy — Vial: depends on your reconstitution maths and how cleanly you read a 0.5 mL insulin syringe at 5–10 IU marks. Pen: dial-a-dose mechanics deliver the same click volume each time, though the exact mcg-per-click for the Body Pharm 20 Pen is not published by the manufacturer and must be back-calculated from the 7.4 mg/mL concentration.

Peptide waste risk — Vial: higher. MT-II is sensitive to temperature shock and repeated needle entry. Reconstituted vials degrade once opened, so a 10 mg vial that you only half-use during a maintenance phase often hits its stability window before you finish it. Pen: lower, because the cartridge stays sealed between doses.

Travel convenience — Vial: you carry powder, bacteriostatic water, alcohol swabs, insulin syringes and a sharps container. Pen: one device plus pen needles.

Time per administration — Vial: roughly 2–4 minutes once reconstituted (draw, tap, inject). Pen: under 60 seconds (dial, prime, inject).

Dimension	Body Pharm 20 Pen	Lyophilised vial
Reconstitution	None	Required
Dose method	Dial clicks	Insulin syringe draw
Waste risk	Lower	Higher
Travel kit	Pen + needles	4–5 separate items
Admin time	<1 min	2–4 min

Cross-shopping prefilled formats? The Body Pharm CJC1295 & Ipamorelin 20 Pen and Body Pharm MOTS-C 32 Pen share the same hardware logic, so the trade-offs above apply across the range.

How Melanotan II Works: The Science in Plain Terms

Melanotan II produces a tan by mimicking alpha-melanocyte-stimulating hormone and binding melanocortin receptors on melanocytes, which upregulates melanin synthesis (melanogenesis) and deepens baseline pigmentation. The pen format changes the delivery hardware, not the pharmacology.

The mechanism breaks down into four steps:

MC1R binding in skin — as an α-MSH analogue, MT-II activates MC1R on melanocytes and pushes them to produce more eumelanin (the brown/black pigment).
UV is still required — MT-II amplifies the tanning response; it does not replace sunlight or a sunbed. Without UV exposure, the upregulated melanocytes have no trigger to fully express the darker pigment.
MC4R activation in the central nervous system — the same peptide acts on MC4R in the brain, which is why users report appetite suppression, nausea and spontaneous erections within hours of injection.
Pen delivery is still subcutaneous — no study has assessed pen-format pharmacokinetics specifically, so absorption is assumed to match standard subcutaneous injection from a vial.

The side-effect profile (flushing, nausea, darkening moles, priapism) results from this receptor promiscuity, not a formulation quirk of the pen.

Melanotan II 20 Pen Dosing Protocol (Step-by-Step)

The pen-format MT-II routine below follows three phases — tolerance, loading, maintenance — using community-reported dose ranges, not clinically validated figures. No peer-reviewed study has assessed pen-delivered Melanotan II pharmacokinetics, so treat every number here as informational and consult a healthcare professional before injecting.

Tolerance Phase (Days 1–5) — Dial the lowest setting the pen permits (commonly around 100 mcg, back-calculated from the 7.4 mg/mL cartridge; the manufacturer does not publish a mcg-per-click spec). Inject subcutaneously into the abdomen or thigh in the evening so predictable nausea, flushing and yawning hit while you sleep. Hold this dose for 3–5 consecutive evenings to gauge how your body handles MC4R activation before scaling.

Loading Phase (roughly Weeks 1–3) — Increase by one dial increment every 2–3 days, working toward the 250–500 mcg/day range that dominates grey-literature protocols. Pair each dose with 15–20 minutes of moderate UV (sunlight or sunbed) within 24 hours, because MT-II amplifies melanogenesis but cannot trigger pigment without UV exposure. Stop escalating once the mirror shows the depth you want, even if that’s below 500 mcg. Most users report visible darkening within 1–3 weeks at these doses.

Maintenance Phase (ongoing) — Drop to 100–250 mcg, twice weekly, and cut UV sessions proportionally to hold the colour. If pigmentation fades, add a third weekly dose before raising the per-injection amount. Pause entirely if new moles appear or existing moles darken, and get a dermatology review — melanocytic change is a documented Melanotan II signal.

Quick-reference dosing table

Phase	Dose (community-reported)	Frequency	UV
Tolerance	Lowest dial (~100 mcg)	Daily, evening	None required
Loading	250–500 mcg	Daily, evening	15–20 min/day
Maintenance	100–250 mcg	1–2x per week	Minimal, as needed

These ranges come from community and grey-literature protocols, not from Body Pharm, SAHPRA, the FDA, the TGA or any clinical trial. No published study has established a dose for pen-format Melanotan II, so treat them as informational only.

Why the pen helps with micro-dosing accuracy

A prefilled dial-a-dose pen delivers the same micro-increment every click. That repeatability matters most in the tolerance phase, where a 50–100 mcg overshoot is the difference between mild flushing and a night of vomiting. It’s a genuine practical advantage over reconstituting a 10 mg vial and chasing 5–10 IU marks on an insulin syringe. Already comfortable with the pen format from other peptides? The Body Pharm CJC1295 & Ipamorelin 20 Pen or Body Pharm MOTS-C 32 Pen click mechanics carry over directly.

How to Use the Prefilled Pen: Administration Tips

Inject subcutaneously into the abdomen or outer thigh by pinching the skin, inserting at 90°, holding the dose button until the click stops, then counting three seconds before withdrawing. The prefilled cartridge skips the air-bubble purge that vial reconstitution requires, which is the main hands-on time saving over a 10 mg vial workflow.

Steps on a fresh pen:

Inspect the cartridge through the window. The solution should be clear and colourless. Discard if cloudy or particulate.
Attach a new pen needle (typically 4–8 mm, 31–32G) and remove both caps.
Prime with one click into the air on first use to clear the needle dead-space. Subsequent doses don’t need re-priming the same day.
Dial the target dose. Wipe the chosen injection site (lower abdomen at least 5 cm from the navel, or outer thigh) with an alcohol swab.
Pinch a fold of skin, insert fully, press the dose button until it stops clicking, hold 3–5 seconds, then withdraw.
Dispose of the needle in a rigid sharps container. Never re-cap by hand.

Store the pen refrigerated at 2–8 °C between uses, upright, with the needle removed and the cap on. Do not freeze, and keep it out of direct light — peptide solutions are sensitive to heat and light. Rotating it with a Body Pharm CJC1295 & Ipamorelin 20 Pen or Body Pharm MOTS-C 32 Pen? Label the caps — the bodies look identical in a fridge door.

Side Effects: What to Expect and How to Manage Them

Most users report mild, transient side effects from Melanotan II: nausea, facial flushing, spontaneous yawning/stretching, increased libido and reduced appetite. Slow titration is the single most effective mitigation because it lets your system acclimatise to MC4R activation before you push toward higher doses. The 100 mcg starting dose and gradual loading protocol described earlier exist specifically for this reason.

Timing matters. Inject in the evening, preferably after food, so the nausea peak (typically 1–3 hours post-dose) overlaps with sleep rather than your working day. If flushing is the dominant complaint, a single non-drowsy antihistamine 30 minutes pre-dose is a common community workaround, though no controlled data supports it.

Serious adverse events

Documented serious events are uncommon but real. The medical literature includes a case of ischaemic priapism after Melanotan II injection, a case of systemic toxicity and rhabdomyolysis following an overdose, and Melanotan-associated melanoma in situ. The TGA additionally lists increased moles and freckles, kidney dysfunction and swelling of the brain among reported harms.

Stop dosing and seek medical attention for: an erection lasting over four hours, chest pain or palpitations, severe persistent vomiting, sudden neurological symptoms, or any mole that changes shape, colour or size. Get a full skin check from a dermatologist before starting and again annually if you continue past one tanning season.

What the data does not tell you

No randomised controlled trial has assessed side-effect incidence for pen-format MT-II delivery specifically. Any percentage you’ll see quoted online traces back to small early-phase studies of vial-reconstituted peptide or to self-reported forum data. The pen changes how accurately you dose, not the molecule’s pharmacology, so the risk profile is the same as conventional Melanotan II injection.

Regulatory Status and Legal Considerations (2026)

Melanotan II is not an approved medicine in any major jurisdiction, and South Africa is no exception. SAHPRA has no Melanotan II product on its register, and Body Pharm’s pen is sold as a research or cosmetic peptide rather than a licensed drug.

What the major regulators say

TGA (Australia): Urges consumers not to use tanning products containing melanotan and states it is illegal to supply them without a doctor’s prescription.
FDA / EMA: No Melanotan II product is approved for any use. The only regulator-approved melanocortin-1 receptor agonist is afamelanotide (SCENESSE), FDA-approved in 2019 for erythropoietic protoporphyria — a different, MC1R-selective molecule, not a cosmetic tanning product.
SAHPRA (South Africa): No registration and no approved indication. Sale as a “tanning peptide” sits outside the Medicines and Related Substances Act framework.

Peer-reviewed literature describes Melanotan II as unlicensed and largely untested in humans. Legal status can shift — verify the rules in your jurisdiction before ordering.

This guide is informational. It is not medical advice, not a therapeutic recommendation, and not an endorsement of Melanotan II use. Comparing other pen-format peptides on the same platform? The Body Pharm CJC1295 & Ipamorelin 20 Pen and Body Pharm MOTS-C 32 Pen sit in the same prefilled-pen category and carry their own regulatory caveats.

Who Is the Body Pharm Melanotan II 20 Pen Best For?

The Body Pharm Melanotan II 20 Pen suits adults who have already decided to use MT-II and want a prefilled, no-reconstitution format with dial-adjustable micro-doses, accepting that it is an unregistered substance in South Africa. It is a convenience and dose-accuracy choice, not a safer molecule.

Good fit

You’ve used vials before and burned product through bad reconstitution, dropped insulin syringes, or inconsistent draws.
You travel and want a single sealed device rather than bacteriostatic water, syringes and a 10 mg vial in transit.
You want repeatable micro-doses without the maths each evening.
You’re already running other prefilled peptide pens like the Body Pharm CJC1295 & Ipamorelin 20 Pen or Body Pharm MOTS-C 32 Pen and want format consistency.

Poor fit, or stop and see a doctor first

Personal or family history of melanoma, atypical naevi, or numerous moles — Melanotan II has been associated with melanoma and darkening moles.
Cardiovascular disease, uncontrolled hypertension, or a history of priapism — reported events include priapism and systemic toxicity.
Pregnancy, breastfeeding, or active attempts to conceive.
Residence or transit through jurisdictions where MT-II supply is explicitly illegal (Australia, UK, EU, US).

Get a clinician to screen your skin and cardiovascular status before you open the pen. The convenience of the format does not change the underlying risk profile.

Body Pharm Melanotan II 20 Pen: Key Specs at a Glance

The Body Pharm Melanotan II 20 Pen is a prefilled subcutaneous injection pen containing Melanotan II, sold via Beskinny.store in South Africa.

Spec	Detail
Active ingredient	Melanotan II
Label strength	20 mg per pen
Assayed concentration	7.4 mg/mL — 22.2 mg total peptide per 3 mL cartridge (CoA, HPLC)
Purity	99.37% (HPLC)
Format	Prefilled, dial-adjustable subcutaneous injection pen
Administration route	Subcutaneous injection
Storage	Refrigerate 2–8 °C, do not freeze, protect from light
Availability	Beskinny.store (South Africa)
Regulatory status (SA)	Not registered with SAHPRA; unapproved substance

Body Pharm does not publish an official mcg-per-click figure for this pen, so the click value must be back-calculated from the 7.4 mg/mL concentration once the device is in hand. Format-consistent alternatives in the same range include the Body Pharm CJC1295 & Ipamorelin 20 Pen and the Body Pharm MOTS-C 32 Pen.

Frequently Asked Questions

Does the pen require refrigeration? Yes. Store the Body Pharm Melanotan II 20 Pen at 2–8 °C, do not freeze, and keep it protected from light. A bedroom drawer is not adequate because temperature fluctuations degrade the peptide. Once in use, keep the pen in the fridge between injections and let it sit at room temperature for a minute or two before dosing to reduce sting.

Do I still need UV exposure? Yes. Melanotan II amplifies melanogenesis but does not replace sunlight. Without moderate UV (sun or a tanning bed), pigment response is minimal regardless of dose. Most South African users report visible darkening only after combining dosing with 10–20 minutes of UV every 2–3 days, though this is community-reported, not clinically established.

How long does the pen last? Roughly 4–10 weeks depending on phase and individual dose. At a community-reported loading dose of 250–500 mcg daily, the cartridge lasts about 40–80 days; on maintenance at 100–250 mcg two to three times weekly it can stretch past three months. Treat these as user-derived estimates, not manufacturer figures.

Can I use the pen if I have fair skin? Skin type affects response significantly. Fitzpatrick I–II users typically need a longer loading phase and report a higher incidence of new or darkening moles, nausea and facial flushing at standard doses. Starting at the low end of the micro-dose range (50–100 mcg) and extending the loading window is the commonly cited approach, though again this is community practice rather than clinical guidance.

Is Melanotan II the same as Melanotan I? No. MT-II is a shorter, cyclic, superpotent α-MSH analogue that activates multiple melanocortin receptors, which is why side effects like nausea, flushing and spontaneous erections are reported. Melanotan I (afamelanotide) is more selective for MC1R and is the only melanocortin agonist with regulatory approval, used for erythropoietic protoporphyria rather than cosmetic tanning.

Comparing the full prefilled pen range? The Body Pharm CJC1295 & Ipamorelin 20 Pen and Body Pharm MOTS-C 32 Pen use the same device format and storage requirements.

Next Steps

Before ordering the Body Pharm Melanotan II 20 Pen, verify that MT-II supply is legal in your jurisdiction, book a dermatology appointment to assess your baseline skin status and mole count, and have your cardiovascular health screened by a clinician. Once you’ve confirmed regulatory compliance and medical clearance, follow the tolerance-phase protocol starting at roughly 100 mcg, and schedule a follow-up skin check within 4–6 weeks of starting maintenance dosing.

References

Evaluation of melanotan-II, a superpotent cyclic melanotropic peptide in a pilot phase-I clinical study. Life Sciences, 1996.
Synthetic melanotropic peptide initiates erections in men with psychogenic erectile dysfunction: double-blind, placebo controlled crossover study. The Journal of Urology, 1998.
Melanotan Tanning Injection: A Rare Cause of Priapism. Sexual Medicine, 2021.
Melanotan II injection resulting in systemic toxicity and rhabdomyolysis. Clinical Toxicology, 2012.
Melanotan-associated melanoma in situ. The Australasian Journal of Dermatology, 2012.
SCENESSE (afamelanotide) implant — Prescribing Information. FDA / DailyMed (U.S. National Library of Medicine), 2019.
Don’t risk using tanning products containing melanotan. Therapeutic Goods Administration (TGA), 2023.
South African Health Products Regulatory Authority (SAHPRA). SAHPRA, 2026.
Body Pharm Melanotan II 20 Pen — Certificate of Analysis (batch MT20034). Body Pharm, 2025.