I found out thanks to Alan Dattner, M.D., after reading his skin care book Radiant Skin. It was the only beauty book I could find with extensive information—an entire chapter!—dedicated to the condition. And then I consulted holistic and board-certified dermatologist Cybele Fishman, M.D., who told me sebo could be a sign that your skin’s microbiome is out of balance. Here is the winning routine and process that finally worked for me—hopefully it helps some of you as well: