Do exfoliate your face regularly but do not commit any of the exfoliation sins listed below:
Do not use a Body Exfoliator on your face.
The skin of your face is much more delicate than that of your body and you can damage your skin.
Do not exfoliate more than twice a week.
Over exfoliating can make your skin think it is under attack. It can cause oily skin to become oilier and dry skin can become irritated.
Do not exfoliate angry, irritated skin.
Irritated skin is very ... irritated and rubbing it with anything assertive is just going to make it more irritated.
Do not use multiple exfoliating products in the same period
It can be tempting to use multiple forms of exfoliators over a period of weeks. This is really not recommended. What I mean is don't use a chemical exfoliant (like AHAs, BHAs, retinoids, adalapene etc.) in the same period that you are using physical exfoliants (exfoliants with granules, or electronic brushes or exfoliating devices). You can trigger a sensitivity reaction.
Do not go in the sun if you are using an exfoliator which contains AHAs, BHAs or Retinoids
The combination of these ingredients with Sun exposure can trigger significant Skin Reactions, including burns, pigmentation and itch.
Read these articles to find out more about exfoliating: