things not to do to your face

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Don't: Use In-Office-Strength Chemical Peels at Home

Why it's really that bad: Unlike the ones you find at reputable cosmetics outlets that are specifically designed for home use, "Extremely strong peels you might buy from websites you don't know very well can do serious damage to your skin," says Sejal Shah, MD, a board-certified dermatologist in New York. "I've seen women end up with chemical burns, which are not only painful but lead to scarring and dark marks."
The fix: Be wary of peels that use language like "office-strength" on the label. Better yet, run any potential peels past your dermatologist before using, or ask for recommendations based on your skin type.