does melanotan 2: Frequently asked questions

Nausea and flushing are on-target MC4R effects, not allergic reactions. They indicate dose is too high relative to your receptor sensitivity. Reduce dose by 50% for the next administration and titrate upward more gradually. Many users start at 0.25mg daily rather than 0.5–1.0mg to minimize GI effects. The nausea typically resolves within 2–4 hours as plasma concentration declines. Taking MT2 in the evening before bed allows users to sleep through peak side effect windows.

Discard the vial and do not use it. Temperature excursions above 8°C denature peptide structure irreversibly. The MT2 may appear unchanged but will have lost binding affinity at melanocortin receptors. Administering degraded peptide produces no tanning or appetite suppression and wastes the dose. Refrigeration at 2–8°C must begin immediately after reconstitution.

No. Eumelanin already synthesized remains in keratinocytes for the natural skin cell turnover cycle, which is approximately 28–40 days. Pigmentation fades gradually as melanocytes return to baseline tyrosinase activity and UV exposure ceases. Discontinuing MT2 does not cause sudden pigment loss. The tan diminishes over 4–8 weeks depending on exfoliation rate and sun exposure habits.