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A bad dye job, overplucked brows, the wrong shade of lipstick— With time, we often realize that what we thought to be hot was actually a hot mess.

My biggest beauty regret? A poodle-esque perm in high school. That, paired with my multi-colored braces, made for quite the look. (One that will never be shared online, thank you.)

Of course, celebrities aren't immune to such embarrassments either. Kim Kardashian tells Allure magazine: "I used to do heavy, heavy painted brows— too dark a pencil and too filled in." Adding,"What I should have been doing was using a lighter color than my brows. Now I use a light brown pencil and only kind of fill my brows in."

What's your biggest beauty mistake? Is there a trend you regret following?