866. The market is suddenly full of products claiming to prevent or even reverse gray hair — not by dyeing it, but by actually changing what's happening inside the hair follicle. Some of these serums, supplements, and "anti-gray systems" are backed by genuinely interesting science. Others are getting way ahead of the evidence. Today, Monica breaks down the biology of why hair goes gray, what ingredients show the most promise (and for whom), and which products are banking more on your hope than on clinical proof.

Nutrition Diva is a Quick and Dirty Tips podcast, hosted by Monica Reinegal.

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Can you reverse gray hair? Here’s what the science says

Nutrition Diva

Can you reverse gray hair? Here’s what the science says