cigarette smoke contain Chemicals in Cigarettes and Tobacco: What's Burning? Chemicals in Cigarettes: From Plant

Burton S, Clark L, and Jackson K

Phototoxic reactions have been reported in 11% of patients, and are more frequent in those with light skin phototypes (I and II).11 They are characterized by extensive pruritic erythema that generally reaches maximum intensity after 48 to 72hours and, unlike PUVA-induced acral blisters, necessitates interruption of treatment.3 The presence of sunburn cells in histology is characteristic

The task force is concerned that this could, for instance, inadvertently increase uptake of vaping among youths and nicotine addiction in the general population

For more detail on equivalence models and worked examples, see this nicotine equivalence guide