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Unlock the secret to thicker, fuller hair with Nioxin Diamax Advanced Hair Thickening Serum, proven to instantly boost hair diameter and protects hair against breakage, allowing it to grow longer* (with daily use).

Save on Diamax Advanced Hair Thickening Serum with a Ulta Beauty promo code

Checkmate is a savings app with over one million users that have saved $$$ on brands like Ulta Beauty.

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