<p><i>Background</i>: To strengthen the risk message on snus warning labels, the European Union in 2016 removed “can” from the warning “This tobacco product (can) damages your health and is addictive.” We tested how these and other textual warnings affect risk perception.</p> <p><i>Methods</i>: Snus-using and non-using Norwegians aged 16–72 participated in two online survey experiments. ...