Source comparison
Melanotan-2 Quality Real vs Fake: Research Comparison
The table below compares observable characteristics, analytical verification, and functional performance outcomes between pharmaceutical-grade Melanotan-2 and common counterfeit presentations encountered in independent testing conducted across 147 samples in 2
This comparison does not assign a generated winner or score.
- The table below compares observable characteristics, analytical verification, and functional performance outcomes between pharmaceutical-grade Melanotan-2 and common counterfeit presentations encountered in independent testing conducted across 147 samples in 2025.
- Lyophilised Cake Appearance
- Uniform disc, white to off-white, adhered to vial, minimal radial cracking
- Loose powder, heavy fragmentation, or absent cake structure
- Visually similar cake but irregular texture, uneven colour
- Cake integrity is the first visual filter. Loose powder fails immediately
- Reconstitution Time
- 60–90 seconds, complete dissolution, clear solution
- 3–5 minutes, incomplete dissolution, cloudy or turbid
- 90–180 seconds, mostly clear but faint haze
- Reconstitution speed correlates directly with purity. Delays indicate aggregates or adulterants
- HPLC Purity
- ≥98%, single dominant peak, batch-specific chromatogram
- 60–85%, multiple peaks, recycled or absent documentation
- 90–95%, plausible chromatogram but no third-party verification
- Third-party re-testing is the only definitive verification. Supplier-provided CoAs can be fabricated
- Mass Spectrometry
- m/z 1,025.2 [M+H]⁺, matches MT-2 acetate salt exactly
- Incorrect mass, multiple species, or no MS data provided
- Correct mass but inconsistent across batches
- MS confirms molecular identity. Absence of MS data is an automatic red flag
- pH After Reconstitution
- 4.5–6.5 (acetate salt in bacteriostatic water)
- 7.5–9.0 or 3.0–4.0, indicating adulterants or wrong salt form
- 5.0–6.0, within range but variable batch-to-batch
- pH outside 4.5–6.5 indicates formulation error or contamination
- Functional Melanogenesis Response
- Dose-dependent darkening in melanocyte assays, EC₅₀ ~1 nM
- Minimal or absent response, or response only at 10–100× expected dose
- Partial response requiring 3–5× normal dose
- Functional assays reveal purity issues that documentation can't hide