Cold Water, Hot Debate: What Science Actually Says About Hair Shine
A widely circulated New York Times explainer on whether rinsing hair with cold water makes it shinier has tapped into a larger consumer question: how much of beauty advice is grounded in evidence, and how much is folklore. The answer, according to dermatology and hair-care science, is more nuanced than the viral claim suggestsโcold water may help hair feel smoother in some cases, but it is not a proven shortcut to lasting shine.
