
Originally Posted by
RazorPete
Thanks Lynn for bringing this topic up,
. . .
Injury sounds like a bad thing for the skin, but actually there are some studies which show that mild repetitive injury to the skin surface is actually beneficial.
. . .
There is a technique called microdermabrasion, which involves the rubbing of small salt or aluminum chloride crystals on the skin to produce a controlled superficial trauma. Done repetitively this gradually improves photo damaged skin by stimulating new collagen deposition in the skin which makes skin thicker and firmer and reverses wrinkling.