The Kat Burki Dual Exfoliating Clay Mask (£72) is another physical and chemical exfoliator that promises to leave skin smoother and brighter, and your pores clearer. As you massage the mask over your face, small botanical beads — made from cranberry fibres and hibiscus petals — (very) gently break up debris on the surface of your skin. At the same time, glycolic acid is also helping to clear away lingering dead skin cells on the surface of the skin, as well increasing cell turnover, and stimulating collagen production. And finally, as the mask sits on your skin, the kaolin clay in the formula helps absorb any excess oil.