One of the most crucial steps of a Brazilian blowout is sealing the treatment into the hair with a flat iron. Hakim explains ...

Dr. Ava Shamban is a board-certified dermatologist based in California and founder of Ava MD. She specializes in body contouring, injectables, lasers, medical dermatology (like hair loss treatments) ...

Forbes contributors publish independent expert analyses and insights. Sarah Y. Wu is a Forbes senior contributor who covers beauty.

CINDY CRAWFORD. Topanga from “Boy Meets World.” Cher from “Clueless.” These are among the retro references name-checked in the blowout hair tutorials blowing up all over TikTok. (At last count, videos ...