The signs your teen has ‘cosmeticorexia’ – as skincare mania triggers permanent scars, burns and crippling anxiety

MANY of us know our retinoids from our salicylic acids, thanks to social media – and, as it turns out, so do kids. Instagram feeds are full of kidfluencers sharing elaborate 10-step routines, while research by skincare brand Pai reveals nearly half of nine to 12 year olds are using multiple products weekly, to fix...