A lactic acid peel may be just the solution if your skin looks dull, or if you notice age spots, uneven pigmentation or fine lines. Using a mild alphahydroxy acid (AHA) made from fermented milk, lactic acid peels are often performed by a dermatologist, but light, superficial peels are safe to do at home. Begin with a mild lactic acid product with a dilution of 10 percent. If you skin tolerates the peel well, gradually increase future peels to a stronger solution of 30 to 40 percent.
Wash your face with a mild, liquid cleanser, then pat your skin dry with a soft towel. To prevent skin irritation, wait 15 minutes before applying the peel.
Moisten a cotton ball or cosmetic pad lightly with the solution, then smooth a thin coat over your face. Re-moisten the pad as you go, if needed. Avoid your lips, nostrils and the sensitive skin around the eyes.
Leave the peel on your face for one minute. Gradually work up to five minutes with subsequent peels. If the lactic acid is highly diluted, such as a 10 percent solution, you can leave it on your face for up to 10 minutes. Set a kitchen timer before you begin and never leave the peel on your skin for more than 10 minutes.
Smooth on witch hazel or light toner with a cotton ball or cosmetic pad to neutralize the acid, then rinse your face thoroughly with cool or lukewarm water for 30 seconds.
Apply a moisturizer. Use a sunscreen with an SPF of 15 or more every time you go outdoors, even on cool, overcast days. The lactic acid will make your skin more sensitive and prone to sunburn.