The Summer Fridays Soft Reset AHA Exfoliating Solution (£49) contains two of the most important ingredients when it comes to exfoliating away dead skin cells and evening out texture: alpha hydroxy acids and niacinamide. And while the formula is certainly powerful, it's also supremely gentle, even for those with sensitive, acne-prone skin. Case in point: the POPUSGAR editor who tested the solution before it launched has sensitive skin and found that she can use this chemical exfoliator every day to keep breakouts at bay — as long as she follows it up with a good moisturiser, that is.