Nutrafol; Lauren Balsamo

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SUPPLEMENTS

SHAMPOOS AND CONDITIONERS

STYLERS

WHY TRUST US?

As someone who’s tested hundreds of hair products (and has the overflowing bathroom cabinet to prove it), I can tell you this: finding formulas that actually help fine, thinning hair can feel impossible. I’ve spent so much money on products that promise volume, thickness, and fullness—only to weigh my hair down or do absolutely nothing.

But you won’t have to waste time or money this year, because I teamed up with my fellow fine-haired Cosmo editors to round up the best hair products for fine, thin hair that are currently majorly discounted for Black Friday 2025—including the cult-favorite Nutrafol

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