A great article by, Suzi Beavers, Licensed Esthetician
Microdermabrasion is a simple, no downtime procedure that exfoliates the skin. Aluminum oxide crystals or baking soda (I prefer the soda/salt as I believe it is gentler to the skin) are normally used to remove the stratum corneum (top layer), where the dead skin cells are located. This procedure will reveal softer, smoother, more vibrant looking skin and a healthier complexion. By repeating this treatment over the course of several weeks, the younger, softer skin moves up to the surface.
When enlarged, clogged pores form on the skin surface, they cause a bumpy, uneven texture. Microdermabrasion can reduce the appearance of these large, open pores by unclogging sebum (oil) build-up and eliminating white and black heads. When dead skin cells are wiped away, acne-causing bacteria cannot survive as easily.
Microdermabrasion works by causing a small amount of trauma to the skin. The skin repairs itself in a more organized fashion, creating younger, healthier looking skin. There are no side effects, the non-surgical treatments can be done in less than an hour. Normal activities can be resumed immediately. These treatments work on all skin colors and types.
During a procedure, collagen production is stimulated, which evens out the skin texture and appearance. It is a painless way to reduce the prominence of shallow scars from acne, fine lines, "crow’s feet," age spots, and other skin wounds. Sun damage and hyperpigmentation are also diminished.
Another advantage of microdermabrasion is that the penetration of cosmeceuticals/skincare is greatly enhanced, since the outer layer of dead skin cells has been exfoliated. Without the stratum corneum acting as a barrier, medicinal creams and lotions are more effective because more of their active ingredients can find their way down to the lower layers of skin.
The desired effect of significant texture and color improvements will continue with time. This non-invasive procedure, performed by a licensed aesthetician, will improve the overall appearance of the skin with no disruption from daily activities.