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The 12 Best Vitamin C Serums for Brightening, Tested and Dermatologist-Approved

We found tailored solutions for dark spots, sensitive skin, uneven skin tone, and more.

Left to right a woman smiling a bottle of vitamin C serum with a dropper another woman applying serum to her face

Byrdie

TL;DR

Crafting a skincare routine can feel like solving a puzzle, and a serum is often a key piece. However, knowing where to begin or which active ingredients to choose can be challenging. Board-certified dermatologist Dr. Diane Madfes, M.D., suggests starting with a vitamin C serum. This potent antioxidant helps boost collagen production, brighten dark spots, and protect your skin from environmental damage. However, a vitamin C serum isn’t a one-size-fits-all solution. Board-certified dermatologist Dr. Dhaval Bhanusali, M.D., notes that vitamin C can be irritating, particularly on sensitive, acne-prone skin or conditions like rosacea, so slowly introducing it is vital.

To help narrow down the best vitamin C serums, we tested dozens for six weeks, evaluating each product’s ease of use, performance, and overall value. Finally, we consulted with four board-certified dermatologists to provide insight into what to look for in a vitamin C serum. Below, you’ll find the best vitamin C serums for acne-prone to textured skin, and everything in between. We guarantee these will give your skin a serious glow-up.

What We Like
  • Lightweight consistency

  • Fast-absorbing formula

  • Improves fine lines and textures over time

What to Consider
  • While it doesn’t contain synthetic fragrance, it has a naturally unpleasant scent

Benefits: Brightening, antioxidant protection, improving the appearance of fine lines and wrinkles | Skin Type: Balanced, dry, combination, sensitive | Dosage: A few drops in the morning | Size: 1 oz | Cruelty-Free: No

Since its launch in 2005, SkinCeuticals’ C E Ferulic has earned a reputation as the gold standard in the vitamin C serum category. Sometimes, the most buzz-worthy products don’t live up to expectations, but after trying it out ourselves, this clinically backed formula surpasses them. We noticed a marked improvement in uneven skin texture, as well as a reduction in the appearance of fine lines. After six weeks of using it, our tester’s skin looked and felt softer, smoother, and brighter. Its formula is also incredibly lightweight, quick to absorb, and doesn’t feel sticky or tight on the skin. 

One thing to note: While this serum doesn’t contain fragrance, it doesn’t have a particularly appealing smell (think a mix between sweaty and metallic). However, because the scent doesn’t linger on the skin, it’s not a deal-breaker for us—plus, it’s simply so effective that we feel it’s worth it.

SkinCeuticals C E Ferulic Tested and Reviewed

Shannon, tester with combination/oily skin: “I’ve used vitamin C daily in my morning routine for eight years, so I wasn’t expecting a huge difference with this formula. But I ended up seeing a difference in the texture of my skin and fine lines during this six-week test. Everything is a bit smoother and softer—this is the only product/step that changed.”

What We Like
  • Reduces the appearance of fine lines and wrinkles

  • Fast absorbing formula

  • Boosts radiance

What to Consider
  • Less precise applicator

Benefits: Radiance-boosting, helps reduce the appearance of wrinkles, helps even skin tone and texture | Skin Type: All | Dosage: 3-4 drops in the morning after cleansing face | Size: 1 oz | Cruelty-Free: No

When our tester, Saleam, tried La Roche-Posay’s Pure Vitamin C Face Serum, the first thing he noticed was how effectively it smoothed his skin. In fact, he saw marked improvements in the appearance of fine lines around his mouth and on his forehead—as well as a serious boost in radiance. He also observed that this serum absorbed quickly into the skin, leaving no residue or stickiness. The one drawback, in his POV, was its dropper applicator. Because its consistency was on the thicker side, he thought that a pump applicator would have made the application process a bit easier—but not a game-changer, in his book.

Site Loop: Person’s face before and after using La Roche Posay Pure Vitamin C Face Serum

Saleam, tester with combination skin: “I started to see some results around the two-week mark, including improvement in my skin texture and tone, as well as smoothing of smile and forehead lines. I’d say my skin is more glowy, too.”

What We Like
  • Gentle on sensitive skin

  • Lightweight, fast absorbing formula

  • Enhances radiance and smooths skin texture

What to Consider
  • Some reviewers find that it has an off-putting smell 

Benefits: Helps improve skin tone, radiance, elasticity, and firmness | Skin Type: Normal, dry, combination, oily | Dosage: A few drops daily | Size: 1 oz | Cruelty-Free: No

We can’t say enough about the glow-boosting effects of this Paula’s Choice vitamin C serum. After six weeks of testing, our tester, Náosha, noted a major boost in radiance. Plus, this serum softened her skin and reduced the appearance of pores, which was a very pleasant surprise. We also thought this serum absorbed beautifully; its lightweight texture didn’t leave a cast or greasy finish. Also, when Náosha used this product on sensitive skin, she noted that it didn’t cause any irritation, redness, or rashes, nor did it have any negative reactions with the other products in her routine. While we didn’t have any issue with the way it smells, it’s worth noting that some online reviewers find it a bit unpleasant. 

Site Loop: Person’s face before and after using Paula's Choice Vitamin C Serum

Náosha, tester with oily, sensitive skin: “My skin is glowing, and its texture has become softer, too. I’d definitely buy this product with my own money.”

What We Like
  • Targets hyperpigmentation and acne scarring

  • Hydrating and quick to absorb

  • Easy-to-use pump packaging

What to Consider
  • Some online reviewers have noted some pilling

Benefits: Reduces scarring and hyperpigmentation, evens tone, softens texture, boosts radiance | Skin Type: All | Dosage: Apply 1 pump to clean skin; use once or twice a day | Size: 1 oz | Cruelty-Free: Yes

Bubble Day’s Dream Vitamin C + Niacinamide Tone & Texture Serum stood out as the best option on our list for targeting dark spots—all while keeping the skin hydrated and radiant. Its medium-thick consistency had a nongreasy feel on the skin; it also absorbed quickly and layered well under makeup. After about two weeks of use, our tester noticed brighter, firmer skin with a more even tone and less visible acne scars. She also appreciated its unscented formula, user-friendly pump packaging, and the fact that it provided enough hydration to occasionally skip moisturizer.

In fact, she felt this serum had virtually no downsides, noting that it delivered on all fronts—from texture to performance—without causing irritation or sensitivity. While she didn’t experience it, it’s worth noting that some online reviewers experienced pilling when layering it under other skincare.

Site Loop: Person’s face before and after using Bubble Day Dream Vitamin C + Niacinamide Tone & Texture Serum

Austen, tester with normal-to-dry skin (not pictured): “After about two weeks of use, I definitely noticed my skin looked hydrated and glowy immediately after applying. I also felt like some of my acne scars were less noticeable.”

What We Like
  • Didn't clog pores

  • Enhances skin's radiance and fades acne scars

  • Hydrating without the greasy feel

  • Gentle on sensitive skin

What to Consider
  • Slower absorption

Benefits: Radiance-boosting, improves the appearance of dark spots and fine lines | Skin Type: All | Dosage: A few drops daily, day or night | Size: 1 oz | Cruelty-Free: Yes

Those with easily irritated, acne-prone skin know just how important it is to find products that are gentle yet effective, and TruSkin’s budget-friendly product checks both of these boxes. In our six-week testing process, our tester found that this product was comfortable and non-irritating for her sensitive and acne-prone skin. While it took about 30 seconds to dry, which is slightly longer than some other options, it had a dewy finish without any greasiness or stickiness. She even noted that she could get away without applying a moisturizer on top since it was so hydrating. Another bonus? It didn’t clog pores—a plus for oilier and acne-prone skin types, in particular. As for after the testing period? Jenna’s post-acne marks looked noticeably lighter, and her complexion looked radiant, making it the best vitamin C serum for acne-prone skin. Overall, she was very impressed—it provided significant results at an ultra-affordable price.

Photos of person’s face before and after using Truskin Vitamin C Facial Serum

Byrdie

Emily Cieslak, associate editor with normal skin (not shown): “I have been getting more compliments on my skin ever since I started using this, and I’m way more confident in stepping outside without any makeup. I took a selfie after flying on a 13-hour flight, and my bare skin still looked bright and glowy.”

What We Like
  • Adds deep hydration

  • Absorbs quickly without sticky residue

  • Easy-to-use pump applicator

What to Consider
  • Longer-term results not as noticeable

Benefits: Boosts radiance, evens skin tone, and helps diminish signs of premature aging | Skin Type: All | Dosage: 2 pumps each morning | Size: 1 oz | Cruelty-Free: Yes

When we tested Sunday Riley’s C.E.O. 15% Vitamin C Brightening Serum, we were most impressed by its hydrating effects, making it our favorite vitamin C serum for dry skin. Its creamy, almost lotion-like texture absorbed quickly without any sticky residue, and even upon first application, it imparted a slight glow and a plump, bouncy feel. Our tester observed that it smoothed the appearance of fine lines and that, even though it had a slightly thicker texture, it layered seamlessly under other products, sans any pilling or irritation. She did notice that its radiance-boosting and brightening capabilities were less pronounced than other options on this list, but if a vitamin C serum with hydrating benefits is the goal, reach for this one.

Site Loop: Person’s face before and after using Sunday Riley CEO 15% Vitamin C Brightening Serum

Shannon, tester with combination/oily skin: “Overall, I liked this vitamin C from the first use—I found it provided a bit of hydration and that it layered well underneath other products.”

What We Like
  • Offers a hydrated, glowy finish

  • Layers well underneath other products

  • Travel-friendly packaging

What to Consider
  • Slightly oily texture

  • Those with sensitive skin should patch-test first

Benefits: Brightens and evens skin tone, reduces the appearance of dark spots and fine lines | Skin Type: Oily, dry, and combination skin | Dosage: Apply 1-2 drops to clean skin |  Size: 1 oz | Cruelty-Free: Yes

Vitamin C serums often come with a high price tag, but for anyone seeking a healthy glow at an affordable price, e.l.f. Cosmetics’ Bright Icon Vitamin C + E + Ferulic Serum is, as they say, that girl. I loved the hydrated, plump feeling it left behind after just one application, as well as the dewy sheen that lasted throughout the day when I applied it in the morning. It also layered beautifully under SPF and makeup, making it easy to incorporate into my daily routine. Its dropper dispensed just the right amount for a full-face application, and its top “clicks” when completely closed, ensuring zero spillage when traveling.

That said, this serum had a slightly oily finish that took several minutes to absorb, and its unpleasant scent (common with certain vitamin C serums) may turn some users off. I also have sensitive skin and experienced some initial redness—its 15% concentration of vitamin C packs a punch—so I’d recommend patch-testing first. While I didn’t notice dramatic brightening within four weeks, I expect results to build with continued use. Overall, this is an affordable, hydrating serum that delivers solid short-term glow and moisture, making it a great choice for the budget-conscious.

Site Loop: Person’s face before and after using e.l.f. Cosmetics Bright Icon Vitamin C + E + Ferulic Serum
What We Like
  • Brightens dull skin and boosts firmness

  • Layers well with other products

  • Convenient pump dispenser

What to Consider
  • Bulky packaging

Benefits: Radiance-boosting, firming, reduces the appearance of dark spots | Skin Type: Balanced, dry, combination, oily | Dosage: A few drops daily | Size: 1 oz | Cruelty-Free: Yes

Hyperpigmentation, acne scarring, redness, and uneven skin texture are all common concerns, and throughout our testing, we found that Ole Henriksen’s Banana Bright Vitamin C Serum addresses them head-on. After six weeks of using this serum daily, our tester, Associate Content Editor Derek Deng, noticed a subtle fading of his acne scars and an overall brightening effect on his complexion. Deng was also pleasantly surprised by this serum’s plumping effect—it added a certain resiliency that gave his skin a healthier appearance. Although he loved the applicator (its airtight pump was a breeze to use), he wished its overall packaging was slightly less bulky and easier to throw in a smaller bag.

Site Loop: Person’s face before and after using Olehenriksen Banana Bright Vitamin C Serum

Derek Deng, associate content editor with combination, acne-prone skin: “This serum is nice to apply—I love its airtight pump, lightweight texture, and glass skin-like finish. Overall, it does exactly what it claims: brightens and plumps the skin.”

What We Like
  • Boosts brightness

  • Evens skin tone and promotes firmness

  • Easy-to-dispense packaging

What to Consider
  • Leaves slightly greasy residue

  • Strong scent

Benefits: Brightens skin, targets dark spots, reduces hyperpigmentation | Skin Type: All | Dosage: Apply 1-2 pumps to clean skin; use once or twice a day | Size: 1 oz | Cruelty-Free: Yes

Those in search of an allover brightening effect should reach for Farmacy’s 10% Waterless Vitamin C Serum. After two weeks of consistent use, Ashley, our tester, began noticing visibly brighter, more even skin; her dark spots looked less intense, and her skin was also firmer, particularly around her crow’s feet. Overall, she loved that her combination skin appeared refreshed and naturally glowy for a healthy, recharged look. She also noted that the packaging made it easy to dispense the proper amount onto her fingers. 

However, Ashley found that this serum left a greasy finish, took a long time to absorb, and caused her skin to tingle upon first application—though this dissipated, and she didn’t experience any further irritation. (Again, always patch-test a new product, particularly if you’re prone to sensitivity.) She also felt that its scent, which she described as musky, was a bit too overpowering for her taste. Despite these drawbacks, she felt this serum effectively brightens and firms the skin, making it worth considering for those focused on visible improvements in tone and radiance.

Site Loop: Person’s face before and after using FARMACY 10% Waterless Vitamin C Serum

Ashley, tester with combination skin: “I had visibly brighter skin after working this vitamin C serum into my routine for two weeks. Even though the size of my dark spots didn’t decrease, their intensity did. My skin had a healthy, natural glow, and my face felt radiant and recharged.”

What We Like
  • Refines uneven skin texture

  • Brightens and evens skin

  • Promotes a healthy glow

What to Consider
  • Results take time

  • May irritate active breakouts

Benefits: Helps even out skin texture, firm and brighten skin, and reduce signs of aging | Skin Type: All | Dosage: One pump in the morning daily | Size: 0.94 oz | Cruelty-Free: Yes

Uneven skin texture is a common skincare concern that requires a smoothing and clarifying product to combat it, and luckily, this standout from Drunk Elephant does that and more. This transformative oil, infused with L-ascorbic and ferulic acid, prevents fine lines and wrinkles while protecting your skin from free radicals. Plus, the inclusion of 1% tocopherol (aka vitamin E) gave former Associate Editor Abby Dupes, a hydrated, illuminated glow. But, the real star of the show was its ability to improve her skin’s texture; dry patches, small bumps, hyperpigmentation, and overall tone drastically improved. She did note a bit of irritation and sensitivity when applied over her active breakouts, so we recommend not applying directly to major flare-ups or skipping a day of use.

As with all good things, it takes time to see results; consistency is key. Although it took a whole month for her to see the glowing and even effects, we promise that with consistent use, the results are worth it.

Site Loop: Person’s face before and after using Drunk Elephant C-Firma Day Serum.

Abby Dupes, former associate editor with acne-prone skin: “For me, the formula really stood out when it came to evening out texture. Small bumps and dry patches gradually went away over time, leaving behind radiant, smooth skin. I also enjoyed how easily the product fit into my routine, as it pairs well with other ingredients.”

What We Like
  • Works quickly to boost radiance and even the skin tone

  • Lightweight and nonsticky texture

  • Firms the skin with continued use

What to Consider
  • Feels slightly tacky at first

Benefits: Boosts radiance, firms, targets dullness, and fades hyperpigmentation and dark spots | Skin Type: All | Dosage: One to two pumps daily | Size: 1 oz | Cruelty-Free: Yes

Former Senior Editor Shauna Beni-Haynes was impressed with how quickly this formula from Tatcha was able to make a difference in her skin—it instantly brightened and firmed her somewhat dull skin, leaving a dewy, radiant finish. This formula uses a myriad of powerful antioxidant ingredients to protect and balance the complexion, including time-release vitamin C, ferulic acid, glutathione, and Japanese plum (an ingredient rich in vitamin C). She loved that it felt super light on the skin, and while it was slightly tacky before it was fully absorbed, it never felt sticky or uncomfortable. After the first application, she immediately noticed how glowy her skin was, and her dark spots were noticeably lighter at about the two-week mark. Another plus? It layered well with other skincare products and never pilled under makeup.

Site Loop: Person’s face before and after using Tatcha Brightening & Firming Vitamin-C Serum

Shauna Beni-Haynes, former senior editor with combination skin: “I love how ultralight the serum feels and how quickly it absorbs into the skin—and the immediate brightening effects are a bonus. If you ever wake up with a dull complexion and need something to brighten up quickly, this is the answer.”

What We Like
  • Imparts a natural-looking glow on the skin

  • Velvet-y texture

  • Smooths skin

What to Consider
  • Potent concentration of vitamin C, which could be irritating to some

Benefits: Boosts radiance and glow, brightens, encourages collagen and elastin production, supports the skin barrier, reduces fine lines, and fades hyperpigmentation and dark spots | Skin Type: All | Dosage: Pea-sized amount applied every 1-2 days | Size: 1 oz | Cruelty-Free: Yes

This 20% L-Ascorbic acid vitamin C serum from BeautyStat, the brand created by the cosmetic chemist behind Hailey Bieber’s Rhode, is Byrdie writer Anna Traver’s absolute favorite (and she’s tested many). It has an unexpected, unique texture; It feels almost velvet-y when applied. Immediately after using, Traver says she notices a radiant glow, and this glow continues to “develop” during wear. It leaves her skin looking so healthy and bright. The serum is formulated with peptides, ceramides, and hyaluronic acid, so although it has a high concentration of vitamin C (which could be irritating to some), it supports a healthy skin barrier and helps boost hydration.

Site Loop: Person’s face before and after using x BeautyStat Universal C Skin Refiner 20% Vitamin C Brightening Serum product.

Anna Traver, writer with oily skin: “I’ve never tried any skincare product that feels so velvet-y soft like this one. It makes my skin look noticeably glowy, and I feel like it helps smooth my complexion. I swear by it!”

What to Look for in a Vitamin C Serum

  • Opaque Packaging: Vitamin C is inherently unstable and quickly broken down when exposed to light and/or oxygen. “When it turns that brownish-yellow color, that indicates that the product itself is no longer stable,” explains Dr. Bhanusali. “When that happens, you won’t get the benefits [of the ingredient] that you otherwise would.” For this reason, Dr. Bhanusali recommends darker or opaque packaging and an airtight pump dispenser to minimize the amount of sunlight that reaches the product. Similarly, always store your vitamin C serum in a cool, dark place.
  • L-Ascorbic Acid: To get the most value from your vitamin C serum, both Dr. Jessie Cheung, M.D., and Dr. Bhanusali suggest looking for this type of vitamin C. “L-ascorbic acid is the most prominent and efficacious version,” says Dr. Bhanusali. That said, L-ascorbic acid also has the highest likelihood of irritation, particularly for sensitive skin types, so introduce it slowly to your routine. Dr. Bhanusali recommends utilizing a two-week rule: “Whenever you apply a new product—especially something like a vitamin C—I recommend not using any other new products for two weeks, allowing your body to absorb the product itself and see if you can tolerate it,” he says. Other less intense versions include tetrahexyldecyl ascorbate (THDA), sodium ascorbyl phosphate, and magnesium ascorbyl phosphate.
  • Other Antioxidants: Vitamin C works synergistically, meaning it can play nicely with other antioxidants. Dr. Cheung says that common antioxidants in vitamin C serums include vitamin E and ferulic acid. In particular, she says these two increase the efficacy of vitamin C and help stabilize it.

How We Tested Vitamin C Serums

A person dispensing La Roche-Posay Pure Vitamin C Face Serum onto their wrist

Byrdie

Below are the features our editors and contributors evaluated over six weeks to determine our top picks.

  • Vitamin C Serums Tested: 30+
  • Testing Period: Six weeks
  • Methodology: We tested these vitamin C serums at home on various skin types (including dry, oily, combination, sensitive, and acne-prone skin). According to the manufacturer’s instructions, our testers applied each serum once daily for six weeks. 
  • Factors Considered: Consistency and texture, efficacy in reducing the appearance of fine lines, wrinkles, and uneven skin texture, any level of irritation or interactions with other products, and overall value.
FAQ
  • What does vitamin C serum do?

    According to Dr. Jennifer Herrmann, M.D., vitamin C has three main functions: It protects against environmental stressors and free radicals, an antioxidant benefit that slows signs of aging and reduces damage overall; it promotes collagen production, giving skin more support and structure; and finally, it can help work to even the skin tone and fade hyperpigmentation.

  • When should you apply vitamin C serums?

    There has been much debate about whether it’s better to use the ingredient to protect skin during the day or replenish it at night, but Dr. Herrmann says you can choose which time of day to apply—just be consistent. If you do apply it in the morning, make sure to finish your routine with a facial SPF, as well.

  • How often should you apply vitamin C serums?

    According to Dr. Herrmann, you should apply vitamin C serum either daily or every other day, depending on your routine and desired results. If you already alternate several other actives, you might apply it every other day; if you’re looking to dramatically fade hyperpigmentation, you may want to use it daily.

  • How should you apply vitamin C serums?

    Dr. Herrmann recommends applying your serum after cleansing. Additionally, avoid using it at the same time as certain other active ingredients like benzoyl peroxide. For example, if you use a benzoyl peroxide product at night, it’s best to apply your vitamin C serum in the morning. You’ll want to follow it up with a good moisturizer with SPF.

Meet Our Experts

We chatted with several experts to get educated on vitamin C serums and what to consider before buying one. Experts include:

  • Dr. Diane Madfes, M.D., is a board-certified dermatologist based in New York. She is an assistant professor of dermatology at Mount Sinai School of Medicine.
  • Dr. Dhaval Bhanusali, M.D., FAAD, is a board-certified dermatologist based in New York. He specializes in medical and cosmetic dermatology and has formulated products for Hailey Bieber’s Rhode, Martha Stewart’s brand 86 Elm, and Amazon.
  • Dr. Jessie Cheung, M.D., is a board-certified dermatologist specializing in dermatological, surgical, and cosmetic procedures based in Willowbrook, IL.
  • Dr. Jennifer Herrmann, M.D., is a board-certified dermatologist and dermatologic surgeon based in Beverly Hills, CA.

Why Trust Byrdie

Avery Stone is a contributing writer for Byrdie and was previously an editorial director for the brand. From the above, she is a personal fan of SkinCeuticals’ fan-favorite C E Ferulic serum. For this story, she talked to experts, compiled testing insights from the Byrdie team, thoroughly inspected their experiences, and noted any standout results. She also combed through product specs, checked ingredient lists, and referenced several peer-reviewed studies.

Edited by Alyssa Kaplan
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