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Reese Witherspoon’s ‘Clean, Smooth’ Hair Secret Is Only $20 (Still On Sale for Prime Day!)

Prime Day won't last forever, and neither will this price!

Reese Witherspoon attends the "You're Cordially Invited" New York screening at Jazz at Lincoln Center on January 28, 2025 in New York City.
Dimitrios Kambouris/Getty Images

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Frizz, flyaways and humidity didn’t stand much of a chance against Reese Witherspoon’s latest red carpet hair. At the Elle premiere in New York City, the actress stepped out with glossy, impossibly smooth strands that looked straight out of a shampoo commercial. The secret to her “clean, smooth” finish? A $20 treatment that’s on sale for Amazon Prime Day.

Celebrity hairstylist Lona Vigi, who partnered with Nexxus for the premiere, relied on the Nexxus Keraphix Liquid Crystallizer Treatment to create what she described as a “clean, smooth and modern” finish. The treatment is currently 34% off for Prime Day, bringing the price down to just $20 — shop it before the sale ends in 14 hours!

Get the Nexxus Keraphix Liquid Crystallizer Treatment for $20 (Was $30) at Amazon! Please note, prices are accurate as of the publishing date but are subject to change.

There’s more to the formula than just shine. The leave-in treatment features the brand’s Keratin Resistance Therapy and liquid crystal amino acids to help strengthen hair from the cuticle to the cortex, targeting damage caused by bleach, highlights, coloring and repeated heat styling.

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It also protects hair from heat up to 450 degrees, so it works just as well before a blowout as it does before reaching for a curling iron or flat iron. According to the brand, the formula leaves hair 34 times stronger and more resilient. The result? Smooth, bouncy hair that looks undeniably healthy.

Amazon shoppers say the results live up to the hype. One reviewer wrote that it left their hair “softer, smoother, shinier” without feeling “greasy or flat,” while another buyer called it an “absolute life changer” for bringing their “dry, brittle,” hair “back to life.”

You don’t need a celebrity glam squad to recreate Witherspoon’s premiere-night shine. A leave-in treatment, a few minutes with your blow-dryer and Reese’s sleek finish suddenly feels much more attainable — especially while it’s on sale for just $20.

Get the Nexxus Keraphix Liquid Crystallizer Treatment for $20 (Was $30) at Amazon! Please note, prices are accurate as of the publishing date but are subject to change.

Looking for something else? Explore more from Nexxus here and don’t forget to check out all of Amazon’s Daily Deals for more great finds!

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