Festival season's here and neon make-up is everywhere. Bright graphic eyeliner, vampy lips and holographic highlighter are some of this year's biggest beauty trends for the main stage. But some of these make-up products, which are being sold by third-party sellers on online marketplaces such as TikTok Shop, can contain a host of toxic chemicals, warns the Chartered Trading Standards Institute, external. So here's what to look out for – and how to stay safe while serving festival glam.