Source comparison
Melanotan-2 Pigmentation Timeline: Research vs Real-World Comparison
First Visible Change 48–72 hours (freckle/mole darkening) 3–5 days (localised pigmentation) Baseline melanocyte density, skin type (Fitzpatrick I–II slower than III–IV) Freckle darkening is the most reliable early marker. Absence by day 5 suggests underdosing
This comparison does not assign a generated winner or score.
- First Visible Change
- 48–72 hours (freckle/mole darkening)
- 3–5 days (localised pigmentation)
- Baseline melanocyte density, skin type (Fitzpatrick I–II slower than III–IV)
- Freckle darkening is the most reliable early marker. Absence by day 5 suggests underdosing or degraded peptide
- Diffuse Skin Darkening
- 10–14 days (0.5mg daily + UV)
- 12–18 days (peptide-only protocols)
- UV exposure frequency, hydration status, tyrosinase cofactor availability (copper, vitamin C)
- UV exposure reduces lag by 40–60%. Peptide-only users should expect the longer timeline
- Pigmentation Saturation
- 28–42 days (daily 0.5mg loading)
- 35–50 days (inconsistent dosing or lower doses)
- Dosing consistency, genetic MC1R polymorphisms, concurrent melanosome inhibitors (hydroquinone, kojic acid)
- Users who plateau at 70% expected pigmentation typically have MC1R gene variants reducing receptor sensitivity
- Maintenance Requirement
- 0.25–0.5mg 2–3×/week (post-saturation)
- 0.5–1mg weekly (anecdotal maintenance)
- UV exposure, individual melanin degradation rate, seasonal variation
- Lower-frequency dosing works only with consistent UV. Indoor-only users need higher maintenance frequency
- Fade Timeline (post-cessation)
- 15–25% reduction over 8 weeks (no UV)
- 30–40% reduction over 12 weeks (real-world adherence)
- Exfoliation rate, UV avoidance, use of melanin-inhibiting skincare
- Pigmentation fades faster than it develops. Cessation without maintenance causes visible lightening within 6–8 weeks