WARNING: Images contain faecal matter – Social media influencer Débora Peixoto insists her ‘poo facial’ is the solution to reducing skin flakiness and signs of ageing – but is this actually true? Experts weigh inWARNING: Images contain faecal matter – Social media influencer Débora Peixoto insists her ‘poo facial’ is the solution to reducing skin flakiness and signs of ageing – but is this actually true? Experts weigh in