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There are endless creams, masks, and over-the-counter topicals spiked with the radiance-boosting antioxidant, so whyserumsspecifically?

Film strips with images of people smiling with while holding small cosmetic containers or rubbing serum on their face

Source images:Allureeditors; Collage: Laneen Wells

They contain high concentrations of the active brightening ingredient, also known as ascorbic acid or L-ascorbic acid.

Tester feedback:“This is probably in everyAllureeditor’s medicine cabinet,” says shopping market editorAngela Trakoshis.

Commerce editorSarah Hanagrees, adding “C E Ferulic helped reduce my spotty, all-over redness.”

SkinCeuticals C E Ferulic brown serum bottle with white label and black dropper cap on light gray background

Angela Trakoshis applying SkinCeuticals C E Ferulic.

Tester feedback:“I love Paulas Choice C15 Super Booster because it’s a no-B.S.

formula,” says Trakoshis.

Its so lightweight and silky and leaves my skin with a glowing look.

Paula’s Choice C15 Super Booster white and orange serum bottle on light gray background

Angela Trakoshis applying Paula’s Choice C15 Super Booster.

What I love about this serum is that its super lightweight and feels very liquidy, which I like.

It doesnt leave any weird residue or stickiness behind.

Plus, the lightweight formula sinks in quickly without emitting any offputting smells or leaving behind a tacky texture.

Dr. Loretta Repair Serum light pink pump bottle on light gray background

Jen Hussein applying Dr. Loretta Repair Serum.

“Its intensive formula helps my skin shed discoloration and flakes to reveal my glowiest, bounciest complexion.”

“It absorbs easily and works well under other layers of skin-care products.”

L-ascorbic acid refines skin texture while salicylic acid gently exfoliates clogged poresmaking it ideal for those with oily skin.

Naturium Vitamin C Complex Serum gray bottle with peach label on light gray background

Sarah Han applying Naturium Vitamin C Complex Serum.

Since free radicals speed up signs of aging, vitamin C helps address fine lines they cause, too.

We review ingredients, scrutinize brand claims, and, when necessary, examine peer-reviewed scientific and medical studies.

To learn more information on our reporting and testing processes, read our completereviews process and methodology page.

Tatcha Violet-C Brightening Serum fuchsia to orange gradient bottle on light gray background

Jen Hussein applying Tatcha Violet-C Brightening Serum.

Our staff and testers

A beauty product is a personal purchase.

Can we honestly deem a high-end diffuser worthy of your hard-earned cash if its never been tested on curls?

We could talk all day about our favorite serumsin fact, here you go:

Done reading?

LiftActive Brightening Serum in branded clear bottle with applicator cap on light gray background

C-Radical Defense Antioxidant Serum in branded silver and orange gradient bottle with cap on light gray background

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La Roche-Posay 10% Pure Vitamin C Face Serum in orange branded dropper component on a light gray background

TruSkin Naturals Vitamin Topical orange serum bottle and box on light gray background

BeautyStat Universal C Refiner white bottle with orange text on light gray background

Drunk Elephant C-Firma Vitamin C Day Serum two bottles with orange caps on light grey background

Revision Skincare C+ Correcting Complex 30% black pump bottle on light gray background

CeraVe Skin Renewing Vitamin C Serum purple and white tube and box on light gray background

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