By Kathy Stern's recollection, it all started at the age of 46 when she decided to try a new facial cream containing alpha hydroxy acids, which help remove dead skin cells and make skin smooth. At first, said Stern, her skin never looked better. Then, everything went awry.
"I switched brands and almost immediately my chin started breaking out, then my cheeks. The women at the cosmetic counter said this redness sometimes occurs when you first use these products."