The document discusses chemical exfoliation and skin peels. It provides information on:
1) Chemical exfoliation involves using acidic solutions to remove dead skin cells and stimulate new skin growth. Common acids used are glycolic and lactic acid.
2) Skin cell turnover rate (cell renewal factor) increases with age - from 14 days for babies to 84 days for those over 50. Exfoliation can increase cell renewal.
3) Chemical peels work by using acids with a pH lower than skin's pH of 4.2-5.6. Lower pH means higher acid and greater effect. Alkaline solutions can irritate skin.
4) The document outlines protocols for specific