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Kristen Bell Uses the Firming Serum That Fights 10 Signs of Aging — And Shoppers See ‘Fine Lines Disappearing’ in as Little as 1 Week

It does the work of multiple skincare steps

Kristen Bell attends Netflix's "Nobody Wants This" FYC Event at Netflix Tudum Theater on November 07, 2025 in Los Angeles, California.
Savion Washington/FilmMagic

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Kristen Bell just reminded Us that red carpet-worthy skin doesn’t necessarily require a red carpet-worthy budget. Her latest glow had the kind of smooth, luminous finish that immediately made everyone wonder what was hiding in her skincare routine. Even better, the firming secret behind it targets 10 signs of aging — without costing hundreds.

Bell attended the 2026 Emmy Awards with seriously radiant skin, and L’Oréal Paris Age Perfect Serum Le Duo was part of her red carpet prep, according to the brand. The actress used the two-in-one formula before the show to help create that smooth, lit-from-within finish. At just $28, it makes her celebrity skincare routine surprisingly easy to recreate at home.

Get the L’Oreal Paris Age Perfect Serum Le Duo for $28 at Amazon! Please note, prices are accurate as of the publishing date but are subject to change.

The L’Oréal Paris Age Perfect Serum Le Duo combines two formulas in one bottle to target 10 signs of aging, including fine lines, wrinkles, firmness, radiance and uneven tone. One side contains a Collagen Peptide serum designed to visibly firm and smooth skin, while the other dispenses a milky serum with Vitamin C and Vitamin B3 to brighten and even out the complexion. Pump them together for both formulas in one easy step.

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Shoppers are seeing impressive results, too. More than 3,000 bottles were purchased in the past month, and one reviewer said that after just one week, she could already see her “fine lines disappearing.” She also noted that the serum “feels really good” on her skin.

The serum is designed to make skin feel smoother immediately, with a more refreshed appearance after two weeks and improvements in tone, plumpness and firmness after eight weeks. Another shopper called the texture “lightweight and silky” and said it leaves her complexion with “a healthy glow.” Plus, the dermatologist-tested formula is gentle enough for sensitive skin.

If Bell’s smooth, radiant Emmys complexion had you reconsidering your skincare routine, this $28 serum is an easy place to start. It combines firming, smoothing and brightening benefits in one step, so there’s no need to crowd your vanity with multiple products. And with shoppers noticing their fine lines looking diminished in as little as one week, we’re adding it to our beauty carts ASAP.

Get the L’Oreal Paris Age Perfect Serum Le Duo for $28 at Amazon! Please note, prices are accurate as of the publishing date but are subject to change.

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

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