They’re in skincare, lip glosses and weight-loss drugs – but also in ‘grey-market’ injectables where some people are buying products online without sufficient human trials to prove their safety. Charlotte Cripps samples some for herself and learns more about beauty’s biggest talking point I’m lying on a bed having a peptide facial. I am not the kind of person who usually pops off for a luxurious 60-minute facial – but I was offered one with a “potent peptide infusion” and couldn’t resist. That’s because peptides are calling out to me ... [10907 chars]