The Chantecaille Purifying and Exfoliating Phytoactive Solution (£76) is chock-full of skin-care acids including AHAs, BHAs, and PHAs to help brighten and smooth your skin, as well as unclog pores (click here if you need a refresher on all the different types of acids out there). But this isn't just a chemical exfoliator; it also contains red microalgae and botanical extracts that the brand claims regulate sebum production and balance the skin's microbiome — the very top layer of skin that's made up of over a trillion types of bacteria that help us fight infections, protects against environmental damage, regulate pH levels, and keep our skin plump and glowy.