The past few years have seen quite a turnaround when it comes to facial exfoliation, as physical scrubs have completely fallen out of favour and been replaced by exfoliating acids. Physical scrubs are not only far too rough, leaving behind “microtears” in the skin’s surface, but the tiny plastic beads used in some products are very environmentally damaging as they wash into the sea and don’t dissolve. Chemical exfoliators, on the other hand, gently break down dead skin cells to reveal newer, softer, more even-toned skin. Within this category are two types of exfoliators: Alpha Hydroxy Acids (AHAs) AHAs work…