2000 · FINDING
CITEDSexual Function
Significant improvement in erectile function and female arousal
⚠ RESEARCH USE ONLY · NOT FDA-APPROVED FOR HUMAN USE · NOT MEDICAL ADVICE
SKIN & ANTI-AGINGRESEARCH
Melanotan II.
The Multi-Effect Tanning Peptide
AKA · MT-2 · MT2 · Barbie Drug
SKIN & ANTI-AGINGSEXUAL HEALTHNASAL SPRAYSSUBCUTANEOUSNASAL
Potent melanocortin peptide that produces tanning, increases libido, and reduces appetite. More side effects than MT-1 but stronger multi-system effects.
~1 hour
Half-life
3
Citations
2
Routes
3
Categories
Store
Storage
65
Popularity
AT A GLANCE.
§ 01 · TL;DRTHE QUICK READ.
Potent melanocortin peptide that produces tanning, increases libido, and reduces appetite. More side effects than MT-1 but stronger multi-system effects.
Activates multiple melanocortin receptors causing tanning, increased sexual arousal, and appetite suppression.
Start very low (0.1mg) to assess tolerance. Nausea common initially.
WHAT IT MIGHT HELP WITH.
1
Rapid, deep tanning
2
Significantly increased libido (both sexes)
3
Appetite suppression
4
May improve erectile function
5
UV protection via melanin increase
HOW IT WORKS.
§ 02 · MECHANISMActivates multiple melanocortin receptors causing tanning, increased sexual arousal, and appetite suppression.
Non-selective melanocortin agonist affecting MC1R (tanning), MC3R/MC4R (sexual function, appetite), producing broad physiological effects.
WHO IT'S FOR
- ✓Those wanting rapid tanning
- ✓Low libido (both sexes)
- ✓Appetite control seekers
- ✓Fair-skinned individuals wanting UV protection
WHO SHOULD AVOID
- ✕History of melanoma
- ✕Cardiovascular conditions
- ✕Pregnant/nursing
- ✕Those with many moles
- ✕History of priapism
DOSING PROTOCOL.
§ 04 · DOSINGTYPICAL RANGE
Start very low (0.1mg) to assess tolerance. Nausea common initially.
Loading: 0.25-0.5mg daily for 1-2 weeks. Maintenance: 0.5-1mg 1-2x weekly
FREQUENCY
Most-cited schedule
Daily during loading, then weekly maintenance
ROUTES
Delivery methods
SUBCUTANEOUS · NASAL
HALF-LIFE
Steady state drives frequency
~1 hour
STORAGE
Protect from light, refrigerate
Store lyophilized at
⚠ NOTE
These are reported protocols from research literature and practitioner accounts, not prescriptions. No FDA-approved human dose exists for research compounds. Anyone using Melanotan II should work with a qualified physician and source from a supplier providing third-party COAs.
FORMS AVAILABLE
- · Subcutaneous injection
- · Nasal spray
⚠ RESEARCH INFORMATION ONLY · NOT MEDICAL ADVICE
SIDE EFFECTS & RISKS.
§ 06 · SAFETY•
Nausea
Very common initially · moderate
Start with low doses
·
Facial flushing
Very common · mild
·
Spontaneous erections
Common in men · mild
·
Mole darkening
Common · mild
Requires monitoring
·
Fatigue/yawning
Common · mild
WHERE TO SOURCE
§ 07 · SUPPLIERPEAK LAB
PEPTIDES
PEPTIDES
SUPPLIER OF RECORD · 12 BATCHES PASSED
We tried nine suppliers across 2025 and kept picking PEAK LAB for Melanotan II: 99.4% HPLC purity, COA on every batch, cold chain intact. Shop through our link and we earn a small commission — affiliate relationship is disclosed.
COMMON QUESTIONS.
§ 08 · FAQWhy is it called 'Barbie Drug'?
Media nickname due to its tanning and libido effects. It's a research peptide, not a recreational drug.
How do I minimize nausea?
Start with very low doses (0.1-0.25mg), take before bed, and slowly increase over 1-2 weeks.
Will my tan be permanent?
No, but MT-2 tans last longer than sun tans. Maintenance doses help preserve color.
MORE ON MELANOTAN II.
§ 10 · FIELD NOTES◆ Guides · ★ FEATURE
How to Reconstitute Peptides: Step-by-Step Guide (2026)
Complete guide to peptide reconstitution — equipment needed, step-by-step instructions, dosing calculations, storage tips, and common mistakes to avoid.
12 min·READ →
◆ Education
Why Peptide Purity Matters: Understanding the 98%+ Standard
What peptide purity actually means, how it's tested, and why quality costs more but saves money long-term.
9 min·READ →
◆ THE PEPGAINS DISPATCH
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