The Ordinary Mandelic Acid 10% + HA £7 LookFantastic Why we love it: In order to make mandelic acid less irritating for the skin without compromising on its many benefits (which include balancing uneven tone and brightening the complexion), The Ordinary has added hyaluronic acid to the formula. Paula’s Choice 6% Mandelic Acid + 2% Lactic Acid Exfoliant £35 sephora £14 amazon Why it’s Vogue-approved: A double act of buffing AHAs, Paula's Choice sets mandelic acid with lactic acid to bust blemishes and smooth with twice the active power. The Gentle Acid leaves skin primed and prepped for seamless application of base make-up, with mandelic acid and lactic acid leading the charge.