“Babies have a different skin pH balance than adults,” says Dr. Timothy Tran, board-certified dermatologist at Westlake Dermatology in Houston. “Adult shampoos aren’t formulated for this ...

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Opt for a shampoo that promotes low pH balance, like Intelligent Nutrients PureLuxe Replenlishing Shampoo, £40, and a conditioner with humectants and emollients to keep moisture locked in.

In between wash days, a dry shampoo can be a savior, according to hairstylist Brendnetta Ashley. She recommends applying it directly to the scalp, massaging it into the hair, and styling as usual.