melanotan 2 2018 II (“Tan Jabs”): Why They're Not Worth The Risk Melanotan-2 Spray Peptides at Best
Description
Yes, smoking can lead to smokers melanosis

In compound melanocytic nevi, nests of benign-appearing nevoid melanocytes are present in the dermis in conjunction with an epidermal component
[DOI] [PMC free article] [PubMed] [Google Scholar] 12.Fei W, Shui G, Gaeta B, Du X, Kuerschner L, Li P, Brown AJ, Wenk MR, Parton RG, Yang H
however not all of them (or actually only a few of them) can cross CNS defences with ease
