Would make sense.. I think they actually do in fact put you on some sort of exfoliator a month or weeks prior to the treatment..

Yup. Some docs recommend doing retin-a before lasers as it reduces the risks of side effects.

When I was doing lasers they made me get off retin a a couple of weeks before the laser treatments due to the fact that the lasers would already exfoliate the skin. You do not want to over exfoliate or your skin will be redder and thinner.