A chemical exfoliant is like a secret agent that uses acids (like AHAs or BHAs) to dissolve dead skin cells. It's gentle and penetrates the skin’s pores so it works on a deeper level. An exfoliant is also a leave-on treatment, and due to the acids in the formula it can make your skin a bit more sensitive to sun exposure. A scrub, on the other hand, is a physical exfoliator with tiny particles that physically buff away dead skin. It works on the surface of the skin, it’s also a wash-off treatment meaning it will not stay ON your skin. This makes the scrub ideal for removing dead skin cells before your beach day for example!