Exfoliating dead skin cells and tackling hyperpigmentation is a job glycolic acid is an absolute pro at. So, when tan comes to town, trust it to have your back ✨ The most effective way is to choose a glycolic acid serum for your PM routine and wearing SPF the next morning. However, it is a potent skingredient, so team sensitive skin can start off with a face wash or toner for a few weeks and then move onto higher concentrations in a serum. Choose from our bestsellers: