More than a billion adults globally smoke combustible cigarettes. The harm caused can be reduced if individuals switch completely to smoke-free products. Availability of a wide range of options can accelerate their switching journey. However, access to products is being restricted by either outright bans or flavour restrictions. Whilst aimed at preventing underage use, this overlooks the needs of adults who smoke. This session will focus on a rigorous, evidence-based evaluation of whether product/flavour bans achieve the objective of reducing youth use of smoke-free products, without undermining adult smokers’ access to effective switching options.