Melanotan II vs PT-141
Melanotan II: Cyclic alpha-MSH analog. PT-141: Melanocortin agonist (bremelanotide). Per milligram, Melanotan II is cheaper right now (USD 0.450 vs USD 0.600 at the cheapest tested vendor). PT-141 has stronger published evidence (grade A vs B). Prices per mg compare cost, not effect: the amounts used in studies differ between compounds.
Melanotan II
Causes tanning and also raises libido (the basis for PT-141). Associated with nausea, darkened moles and other safety concerns.
- What it is
- Cyclic alpha-MSH analog
- Category
- Skin, hair & tanning
- Status
- Not approved anywhere; regulators warn against its use.
- Cheapest
- USD 0.450 per mg (Huaian Dinglin Trading)
- Median price
- USD 3.00 per mg
- Vendors
- 75 independently tested, 24 with a lab report
- Research
- Grade B: Some human evidence (11 papers)
- Studied as
- studied in people
- Reported side effects
- Nausea; Yawning and stretching; Spontaneous erections; Somnolence and fatigue
PT-141
Acts on brain melanocortin receptors to increase sexual desire, independent of blood flow.
- What it is
- Melanocortin agonist (bremelanotide)
- Category
- Sexual health & hormones
- Status
- FDA-approved as Vyleesi for low sexual desire in premenopausal women.
- Cheapest
- USD 0.600 per mg (BeiBangAn)
- Median price
- USD 3.33 per mg
- Vendors
- 75 independently tested, 21 with a lab report
- Research
- Grade A: Strong human evidence (8 papers)
- Studied as
- an approved drug
- Reported side effects
- Nausea; Flushing; Headache; Injection-site reactions
Cheapest tested vendors for Melanotan II and PT-141
Lowest price per milligram at up to three independently tested vendors each. Rankings are by price only; open a vendor to see its lab results.
| Peptide | Vendor | Per mg |
|---|---|---|
| Melanotan II | Huaian Dinglin Trading | USD 0.450 |
| Shenzhen Loga Tech LG LOGA | USD 0.450 | |
| BeiBangAn | USD 0.600 | |
| PT-141 | BeiBangAn | USD 0.600 |
| LN Peptides | USD 0.600 | |
| Shenzhen Loga Tech LG LOGA | USD 0.600 |
Questions people ask
What is the difference between Melanotan II and PT-141?
Melanotan II: Cyclic alpha-MSH analog. PT-141: Melanocortin agonist (bremelanotide). Per milligram, Melanotan II is cheaper right now (USD 0.450 vs USD 0.600 at the cheapest tested vendor). PT-141 has stronger published evidence (grade A vs B). Prices per mg compare cost, not effect: the amounts used in studies differ between compounds.
Which is cheaper, Melanotan II or PT-141?
Melanotan II is cheaper per mg: USD 0.450 for Melanotan II vs USD 0.600 for PT-141 at the cheapest independently tested vendor. The median listing is USD 3.00 per mg for Melanotan II and USD 3.33 per mg for PT-141.
Which is easier to find from a tested vendor, Melanotan II or PT-141?
Melanotan II is sold by more independently tested vendors: 75 list Melanotan II (24 publish a lab report for it) and 75 list PT-141 (21 with a lab report).
Which has more published research, Melanotan II or PT-141?
Melanotan II is graded B (some human evidence) from 11 papers and PT-141 is graded A (strong human evidence) from 8 papers. Grades count studies of the exact compound only; they describe how much evidence exists, not which one is better.
Are Melanotan II and PT-141 FDA approved?
Melanotan II: Not approved anywhere; regulators warn against its use. PT-141: FDA-approved as Vyleesi for low sexual desire in premenopausal women.