The Best Science-Backed Way to Wash Your Hair
Focus on the scalp
Apply shampoo to the hair’s roots, massage it into the scalp gently, and “let the lather cleanse the lengths as it rinses,” Kobets says. Then, completely rinse out the shampoo. Over-scrubbing can irritate the scalp and worsen conditions like eczema or dandruff, she adds.
Coat the ends in a conditioner
How much you use depends on how much hair you have, Goh says. She suggests applying conditioner to the hair ends and shaft, but not the scalp unless it’s particularly dry. Rinse it out thoroughly.
Use lukewarm water
It’s best for the skin and hair, Guo says. Hot water can irritate the scalp by stripping oils and causing dryness.
Pay attention to your scalp
If you notice persistent rashes, pimples, redness, or itching, Goh suggests seeing a dermatologist.
Hair conditions can sometimes manifest as scalp problems, Guo adds. He suggests seeing a dermatologist if you have bald patches or sudden or worsening hair shedding.
