Is your £300 LED mask doing anything at all?

Glycolic acid, the multipurpose acid with fifty years of research behind it. The Counter has a clinic-only serum that stacks three acids on a copper peptide, the £40 multi-serum that does what the £100 ones do, and a £29 British cream for dry, reactive skin that does the La Mer job for a tenth of the money. Then, Pinterest turns the looks you save into step-by-step guides, Medicube sets up in Hanover Square for three days, and e.l.f. walks into fragrance. One Good Thing covers LED masks: mild, modest or high results, which three are worth the money, and our verdict on the one everyone's buying. Finally, a pop quiz on how many people it takes to make an LED mask "clinically proven,” plus the result from last week’s PDRN question.