Madison LeCroy swears by this ‘magic’ overnight treatment for ‘amazing’ hair the next day

Sometimes, a beauty product works like a charm.

Madison LeCroy took to Amazon Live this week to share her summer glow-up essentials. And when a fan asked her advice for heat protection and treating damaged hair ends, the “Southern Charm” star dished on her go-to: Kérastase Nutritive 8H Magic Night Serum.

“I’m a big Kérastase girlie, I’ve always been,” LeCroy shared, joining brand faces Demi Moore and Sydney Sweeney, as well as fellow reality TV star Bethenny Frankel, in loving the luxury French hair care line.

Kérastase Nutritive 8H Magic Night Serum

Kérastase

Made for all hair types, Nutritive 8H Magic Night Serum is meant to be applied at night to reduce pillow friction, which can cause frizz, while hydrating locks and keeping them detangled.

It contains niacinamide to strengthen strands and plant-based proteins to infuse moisture (but it absorbs so quickly, it doesn’t end up on your pillowcase).

“This is a treatment [where] you can still have amazing, clean-looking hair the next day,” LeCroy — who is a licensed cosmetologist — explained, saying she wants her hair to stay healthy despite a lot of heat styling.

Adding that many of the comparable products leave an “extremely oily” residue, she said Nutritive 8H Magic Night Serum doesn’t weigh hair down or cause your style to go flat.

While she admits it’s an investment, she says it’s well worth it, quipping that it’s better to have rich-looking hair than a designer purse. (“Get our priorities together,” she joked.)

LeCroy is a licensed cosmetologist — and a longtime Kérastase fan. Amazon Live/

The overnight treatment earns high marks from shoppers as well. It has thousands of five-star reviews and many say that though it’s pricey, only a tiny amount is needed — meaning one bottle goes a long way.

“Magic in this little bottle, most definitely,” wrote one customer, who says it’s a “game changer” for reducing frizz.

“Woke up with the softest hair of my life!” another raved, saying that their frizz was “dramatically reduced” and the formula “absorbs quickly and doesn’t leave any greasy residue on my pillow.”

If you’re looking to beat summer frizz and damage, Nutritive 8H Magic Night Serum might be the perfect place to start.

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This article was written by Erica Radol, Page Six Commerce Reporter. From identifying the top anti-aging skincare secrets the stars trust to dishing on the latest fashion collabs to finding a great deal on all of the above, Erica has a knack for reporting on – and even testing – Hollywood’s bestselling fashion and beauty products. Before joining Page Six in 2025, she wrote about entertainment, lifestyle and shopping trends for Us Weekly, The Daily Beast, Entertainment Tonight, Well+Good and Hearst.