Demi Lovato has a gorgeous face … until you see her eyebrows. She seems to be suffering from the tadpole brow problem, when “the beginning is too thick, and the ends are to thin,” says Khesti. Why is this so bad? According to Padilla, tadpole-type brows create “a severe look, almost as if the person is always angry and squinting.”

To fix this problem, Khesti recommends filling out the skinny part of the eyebrow. “While the brow should get thinner toward the end, the eyebrow’s thickness should change gradually,” she says. This looks more natural and less abrupt, unlike the tadpole look.