The Science of Skin
Our skin renews itself every 28 days or so, the layers gradually rising to the surface before being shed. As the squamous cells (they are called this because of their flat appearance under the microscope) are pushed to the surface by new cells beneath them, they can become "bunched up". This can lead, over time, to an appearance of dullness or dehydration.
Stimulate New Skin Cells
Under the electron microscope, the surface looks rough, with old squamous cells (which are dead) hanging on until they fall off. Peels remove this outermost layer of dead cells and also stimulate the underlying dermis to produce new cells. There are many types of peel.
Categories of Peel
There are 3 main categories of peel. Firstly,superficial, which causes very little (if any) actual peeling, but removes the dead superficial layer and "freshens the skin". Secondly, medium, which usually causes peeling (and is the type most of you recognise from Sex in the City) and finally, deeppeels. These require a general anaesthetic and will not be covered here.