Buzzwords such as non-toxic, all natural and eco-conscious have become the norm, but what exactly does clean beauty mean? Should we be steering clear of products with any chemicals in them, or is that a step too far? Sali takes the bull by the horns and is joined by skincare expert Caroline Hirons and cosmetic scientist/skincare brand founder Sam Farmer to discuss clean beauty in-depth and answer your questions on the subject in the surgery.