10 Best Vitamin C Serums, According to Dermatologists ...

If you are looking for perfectly dosed vitamin C treatments, look no further. These GH Beauty Award-winning biodegradable capsules contain a potent blend of encapsulated vitamin C and phyto-ceramides to brighten, hydrate, and strengthen the skin barrier. In our Lab testing, they received the highest score for making skin tone appear more even, brighter, and more radiant in just four weeks. Plus, testers liked the pleasant scent and found it easy to apply.

Testers really loved the single use dispenser: “This ensures the product is always clean and it also is the perfect amount,” one said. “It also gave my skin a glow and helped even out my skin tone.”

Buy if: You have dull, lackluster skin and need a brightening boost.

Skip if: You are in a time crunch. The serum may be slower to absorb compared to other dark spot serums.

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Credit: ROC

A GH Beauty Award winner and Seal star, RoC's drugstore value serum is rich with antioxidants and vitamins. It features a unique blend of vitamin C, castor oil, and glycerin, all of which help brighten and moisturize the skin.

Buy if: You have discoloration or uneven skin tone and are looking for a great value. According to GH Beauty Lab evaluations, 94% of users found a more even skin tone with daily use.

Skip if: You have sensitive skin—the high level of actives in this formula could cause irritation.

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Credit: SkinCeuticals

GH Beauty Lab Director Sabina Wizemann loves this splurge-worthy SkinCeuticals serum, a dermatologist gold standard, for its gentle yet effective performance. “Even with 15% of L-Ascorbic acid—an outstanding and proven form of vitamin C—this serum doesn’t irritate my skin like other products I’ve tried,” she says. "It firms and brightens skin, and leaves it supple and glowy," thanks to the conditioning and anti-inflammatory properties that vitamin E provides.

This is also a top pick from Geeta Yadav, M.D., a board-certified dermatologist and founder of Skin Science Dermatology. "The combination of vitamin E and ferulic acid has been shown to complement sunscreens and reduce the effects of environmental stressors on the skin," she says.

Buy if: You are looking for a super high concentration of vitamin C that won’t aggravate skin.

Skip if: You aren’t looking to spend a lot of $$. This is one of our priciest picks. Also, it does have a very unique and strong (some say “hot dog-like”) scent so you should pass if you are scent sensitive.

Credit: Olay

Packed with powerhouse ingredients like vitamin C, peptides, niacinamide, and lactic acid, Olay's antioxidant serum helps you get your glow on.

Buy if: You have hyperpigmentation or skin has gotten dull. A GH Beauty Lab data evaluation confirmed that the formula significantly improves skin brightness and dark spots starting at two weeks of twice daily use, per a study on 120 women.

Skip if: You have acne-prone skin, as some users reported breakouts after application.

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Credit: bliss

Perfect for easily aggravated skin, this serum from Bliss is formulated with a newer form of vitamin C called 3-O ethyl ascorbic acid, which is thought to be less irritating without sacrificing efficacy. The formula is collagen-protecting and brightening to fade dark spots, firm skin, and improve texture. The brand claims the formula is ultra-stable, so it can live right in your medicine cabinet or vanity.

Buy if: You love a citrus scent or you have sensitive skin.

Skip if: Sticky textures bother you.

Credit: Drunk Elephant

A great option for oily complexions, "this lightweight serum has the right amount of vitamin C and brightens, plumps, and hydrates," says Ellen Marmur, M.D., a New York-based dermatologist and founder of Marmur Metamorphosis Skincare. The product contains additional ingredients such as vitamin E, ferulic acid, and fruit enzymes that help brighten and smooth the skin's texture.

Buy if: You like to play scientist. This has a unique formula where you mix the powder with the liquid once before the first use to maximize the potency of the ingredients. It’s also great for those who get greasy easily.

Skip if: You are picky when it comes to texture—some reviewers complained about the product feeling a little tacky when applying.

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The Mary Kay TimeWise line is nothing new to the Good Housekeeping Institute team: For years, GH Beauty Lab experts have been recommending TimeWise products for various skincare concerns. This GH Seal star replenishing serum contains three types of vitamin C along with vitamin E for an age-defying combination.

Buy if: You have mature or irritable skin. Clinical studies have shown the serum is generally mild and does not bother testers with sensitive skin.

Skip if: You prefer lighter liquid serum formulas; this one is more lotion-like.

Credit: OAM

Light and powerful without irritation? Yes, really. A GH Beauty Award winner, OAM's featherlight formula utilizes a time-release delivery system to gradually release its 20% concentration of vitamin C (a combination of three different types) into skin.

Testers loved the sheer formula: “The water-like formula soaked instantly into skin, leaving no residue and has a pleasant citrusy scent unlike some other vitamin C serums,” one said.

Buy if: You are looking for something with serious brightening power that’s also very lightweight. Our Beauty Lab data evaluation confirmed that in a study of 96 women with a full range of skin tones using image analysis, skin radiance was significantly improved after eight weeks of use.

Skip if: You have combination or oily skin—a few testers noted breakouts after use.

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Credit: skinceuticals

A GH Beauty Award winner and variation on SkinCeuticals' popular CE Ferulic serum, this formula contains salicylic acid and is specially formulated for oily and blemish-prone skin. Though it's a splurge, it delivers results: “Based on data review, this is effective for improving skin clarity and texture,” Wizemann reports.

"This lightweight, quick-absorbing serum is a two-for-one," says GH Beauty Lab Senior Chemist Danusia Wnek. "I enjoy getting the antioxidant benefits from the vitamin C and the pore refining benefits from salicylic acid."

Buy if: You break out easily. Wnek recommends this for those with acne-prone skin who still want to incorporate vitamin C in their routine.

Skip if: You have a sensitive nose or don’t want to break the bank. "The two downsides are the steep price, and its hot dog water smell can be a turn-off for some, but the smell doesn’t linger on skin,” says Wnek.

Like the name says, this serum from L’Oréal Paris is a triple threat, containing vitamin C to brighten, peptides to boost collagen production, and argireline to reduce the appearance of lines and wrinkles. GH Beauty Lab testers loved the scent, and raved about how easy it was to dispense and apply. They also scored it highly for making skin appear firmer and reducing the look of fine lines and wrinkles.

Buy if: You are looking for a one-stop-shop for an anti-aging serum or one that is lightweight and sinks in instantly.

Skip if: You have dry, rough skin and are seeking out softness. Our testing revealed that other serums were better at softening skin.

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How we test vitamin C serums

This list includes GH Seal holders, Beauty Lab-tested favorites, and additional recommendations from Beauty Lab experts, editors, and dermatologists.

These recommendations are informed by expert evaluations, ingredient analysis and Beauty Lab experience evaluating skincare products. Although not every product on this list was assessed in the Beauty Lab, our scientists have conducted extensive testing on anti-aging serums, including vitamin C formulas.

In these tests, the products are first label-masked to eliminate bias, then distributed to dozens of consumer testers, who apply the products daily for four weeks. After the testing period, Lab analysts use the Visia Complexion Analyzer to measure changes in skin, including hyperpigmentation, lines, wrinkles, and pores.

Testers also provide feedback on how their skin looks and feels during and after use and any perceived changes in skin. They share their thoughts on texture, absorption, ease of use, and scent. These findings help identify top-performing serums and inform our evaluation of products across the category.

What to look for when shopping for vitamin C serums

In theory, almost everyone can incorporate a vitamin C serum into their skincare routine. However, Dr. Marmur cautions that too much vitamin C can potentially irritate skin. It depends on your skin type, but she personally recommends products that contain between 10 to 15% potency for best results.

Vitamin C is highly effective in its pure form, according to Wnek, but it is a tricky ingredient to formulate with because it is very unstable and can degrade with exposure to oxygen, light, water, and high pH. That means that while it is a hero ingredient, its properties are difficult to stabilize—and because of that, some vitamin C serums and other skincare products work better (and for longer) than others.

The powerful ingredient comes in a variety of forms, which "differ primarily in their stability, solubility, and ability to penetrate the skin," says Wizemann. "Some types may be better suited for certain skin types or concerns, while others may provide improved stability for products that face exposure to air or light."

If you have dry skin, you might want to look for added moisturizing ingredients like hyaluronic acid; if you have very sensitive skin or rosacea, start slowly and carefully as your skin is already compromised and prone to irritation. Wizemann explains the differences in the most common forms seen in OTC products:

✔️ L-Ascorbic Acid: The most well-studied form of vitamin C used in skincare products, L-ascorbic acid is highly effective at brightening the skin, reducing the appearance of dark spots and hyperpigmentation, and promoting collagen production. However, it can be unstable and prone to oxidation when exposed to air or light.

✔️ Ascorbyl Palmitate: A more stable form of vitamin C, ascorbyl palmitate is often used in formulations where stability is a concern, such as in moisturizers. However, it does not penetrate the skin as effectively as L-ascorbic acid.

✔️ Sodium Ascorbyl Phosphate: More stable than L-ascorbic acid, this type of vitamin C is less irritating and better for those with sensitive skin but less potent than L-ascorbic acid. It also has antioxidant properties, can help brighten the skin, and reduce inflammation.

✔️ Magnesium Ascorbyl Phosphate: Another stable form of vitamin C, magnesium ascorbyl phosphate is often used in skincare products targeting acne-prone or sensitive skin. It has anti-inflammatory properties and can help reduce redness and irritation while brightening the complexion.

✔️ Tetrahexyldecyl Ascorbate: This lipid-soluble form of vitamin C is highly stable and penetrates the skin easily. It is often used in anti-aging formulations to promote collagen production, reduce wrinkles, and improve skin texture.

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What are the benefits of Vitamin C serums?

Wizemann shares the benefits of this all-star ingredient:

Fights free radical damage: Vitamin C neutralizes free radicals generated by UV radiation and environmental pollutants which helps prevent oxidative stress and damage to skin cells.Increases collagen production: It helps reduce collagen breakdown which keeps skin elastic and youthful-looking and also slows down aging by stabilizing collagen fibers.Reduces signs of aging: By promoting collagen production, vitamin C can help reduce the appearance of fine lines and wrinkles, as well as improve overall skin firmness.Diminishes dark spots and hyperpigmentation: It inhibits melanin production by interfering with tyrosinase, the enzyme responsible for creating melanin; this can lead to reduced age spots or sunspots.Improves dull skin texture and tone: Using vitamin C can help create a more even skin tone due to its ability to reduce tyrosinase activity and discoloration in skin.Hydrates: Vitamin C indirectly contributes to skin hydration by promoting collagen synthesis and improving the skin barrier.Brightens: By reducing hyperpigmentation and protecting skin from damaging UV rays, vitamin C can have an overall brightening effect.Provides anti-inflammatory effects: Vitamin C prevents the release of certain pro-inflammatory chemicals in the body; this also makes it a treatment option for skin conditions like acne and rosacea.Helps wounds heal faster: In addition to speeding up healing, it can also prevent dark spots from forming after an injury or acne.

Do vitamin C serums really work?

Yes! When used on a daily basis, a vitamin C serum can help brighten dull skin, diminish acne scars, even out skin tone, hydrate skin, and protect it from pollution and UV damage. Once you find the most effective vitamin C product for your skin type, simply apply the vitamin C serum to clean, dry skin once or twice a day, and follow with your favorite face moisturizer to seal in the serum and further hydrate skin.

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What’s the best way to apply a vitamin C serum?

"It is most common to apply vitamin C in the morning, but some dermatologists feel that nightly application is also beneficial if the serum is well tolerated," says Wizemann. She advises to follow the directions on the packaging, as some mention once daily in the morning while others may say "am and pm."

Wizemann adds that vitamin C is safe to use daily for long periods and works synergistically with other anti-aging agents like sunscreens, tretinoin, antioxidants, and alpha-hydroxy acids. If it's too strong for your skin, it may cause stinging, redness, and dryness, which typically can be managed with a moisturizer. "When applying vitamin C around the eyes, use caution, as it can irritate," she says.

Why trust Good Housekeeping?

GH Beauty Lab Senior Chemist Danusia Wnek helped select the picks listed above and contributed her knowledge and research of vitamin C and the effects it can have on skin. She has experience in using specialized skin evaluation lab equipment, regularly polls our consumer panel, and weighs in on the benefits of skincare ingredients like vitamin C, retinol, and niacinamide.

GH Contributing Beauty Editor Dori Price recently updated this article, adding in more details about the product picks and additional info about testing protocols. She has over 15 years of experience researching and writing skincare stories and is an expert in all face and body skincare product categories.

Dori consulted GH Beauty Lab Director Sabina Wizemann on her most recent update, with Wizemann contributing information about different forms of vitamin C, how to shop for serums as well as all of the benefits the ingredient offers. Since joining Good Housekeeping, Sabina has touched, researched, tested, and evaluated thousands of products for almost a decade.

Sabina (she/her) is the director of the Beauty, Health & Sustainability Lab at the Good Housekeeping Institute, where she has overseen skincare, haircare and makeup testing since 2012. She also reviews applications, substantiates claims and evaluates products for the GH Seal and the Beauty Awards and Sustainability Awards programs. She has a B.S. in chemistry from Ithaca College and more than 16 years of experience working in the pharmaceutical and personal care industries.