What precautions should I follow when using AHA products?

If you want to use AHA products, follow these safety tips:

• Always protect your skin before going out during the day. Use a sunscreen with a SPF (sun protection factor) of at least 15. Wear a hat with a brim. Cover up with lightweight, loose-fitting, long-sleeved shirts, and pants.
• Buy products with good label information:
• a list of ingredients to see which AHA or other chemical acids are in the product
• the name and address of the maker
• a statement about the product's AHA and pH levels

The first two have to be on the label. The third is one is by choice. You can call or write the maker to find about a product's AHA and pH levels.

• Buy only products with an AHA level of 10 percent or less and a pH of 3.5 or more.
• Test a small area of skin to see if it is sensitive to any AHA product before using a lot of it.
• Stop using the product right away if you have a reaction, such as stinging, redness, or bleeding.
• Talk with your doctor or dermatologist (a doctor that treats skin problems) if you have a problem. You also can report your reaction to the FDA. Write to: Office of Cosmetics and Colors (HFS-106), 5100 Paint Branch Parkway, College Park, MD 20740-3835. Or you can call them at (202) 401-9725.