For years, I have been using MAC Microfine Refinisher ($26.50). The cream-based scrub contains microfine crystals used in professional micro-dermabrasion to gently slough and refinish the skin, leaving it smooth, soft, naturally glowing.
Although the beads are really fine, do not be fooled by the size as they can be quite abrasive. I like to use this on both my face and body and it always gets rid of all my flakes without irritating or drying out my skin. Definitely one of the best scrubs out there!