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While some skin care ingredients are shrouded in obscurity, others are well-known – one of the latter being vitamin C. It’s everywhere in brightening products, anti-wrinkle eye creams, anti-aging serums. aging, and other treatments whether you’re just connecting with skin care or you’re a friend of anyone who writes advice, we’re willing to bet you’ve heard of the powerful antioxidant. But if you still haven’t added a vitamin C product to your skin routine, let us convince you of the many reasons you should. First, experts share all the details you need to know about vitamin C, including its benefits and the most effective ways to use it.

What Is Vitamin C Good For In The Human Body

Who can use it: Vitamin C is not recommended for those with very sensitive skin and may be problematic for those with oily skin. Herrmann recommends asking your board-certified dermatologist which brand is right for your skin type.

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Works well with: Vitamin C works well with antioxidant supplements such as vitamin E and ferulic acid, which will enhance the effectiveness and stability of the molecule.

Don’t use it: Avoid using benzoyl peroxide, which can oxidize vitamin C and make it ineffective quickly. Also avoid using vitamin C with other acids, which can cause skin irritation, especially if used daily. Do not use retinol, which can make vitamin C unstable and more likely to penetrate the skin.

According to cosmetic chemist and founder of BeautyStat Cosmetics Ron Robinson, vitamin C is an essential nutrient for the growth and repair of cells in all parts of the body, including the skin, but we cannot produce it on our own. Powerful antioxidants are found naturally in fruits and vegetables and are commonly found in skin care products, such as moisturizers, toners, and, often, serums.

“It’s important to know that vitamin C has both active and inactive forms,” ​​says Anna Guanche, MD, dermatologist, celebrity beauty expert, and founder of Bella Skin Institute in Calabasas, CA. “Depending on the skin care regimen, applying vitamin C can do nothing at all or act as a powerful antioxidant.” The first form of vitamin C worth mentioning is the pure form, L-ascorbic acid. Jennifer Herrmann, MD, a board-certified dermatologist who practices in Beverly Hills, CA, says that this is the most active form of vitamin C, but there are several forms of vitamin C, such as sodium ascorbyl phosphate. , ascorbyl palmitate. , retinyl ascorbate, tetrahexyldecyl ascorbate, and magnesium ascorbyl phosphate. “These products are not pure vitamin C, but are added with other ingredients, which may help protect the vitamin C,” Robinson added. “So when these extracts come into contact with the skin, they release pure vitamin C into the skin.” For example, he says that if a product contains 10 percent of one of these ingredients, it may release only 3 percent of pure vitamin C. the skin. Herrmann adds that the differences are mostly in their solubility (their ability to dissolve easily in water) and pH.

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To understand how vitamin C works, we first need to know how free radicals damage the skin. There are three types of free radicals, but Renée Rouleau, famous esthetician and founder of her famous skin care brand is mostly concerned about reactive oxygen species (ROS). “We encounter ROS in the air we breathe (oxygen), cigarette smoke, UV light, stress, and smoke,” she says. The effects of ROS are no joke: They damage skin cells and change DNA, moisture barrier, skin tone, color, and cell function.

To demonstrate the effects of ROS and oxidative stress on the naked eye—and to clarify how vitamin C works to combat them—Rouleau conducted a simple experiment involving apples. She coated one end of the slice with a thin layer of vitamin C serum and left the other side completely untouched. Then, she waited for three hours. Here’s what happened:

As you can see, the side of the apple coated with the vitamin C serum is not oxidized at all. “This shows how topical vitamin C can prevent oxidation and, therefore, reduce the visible appearance of aging,” said Rouleau.

Vitamin C is very reactive and easily loses its antioxidant properties when exposed to heat, light, air, and other chemicals. To prevent oxidation and spoilage, use vitamin C in airtight containers, and store in a cool, dark place. If your product has turned brown, Herrmann says it’s best to throw it away and replace it with a new bottle, because this color change indicates that the breast milk has oxidized and is no longer effective.

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In general, vitamin C is safe for daily use. However, in high concentrations, it can be irritating, especially if it is mixed with other acids. Herrmann says those with very sensitive skin may not be able to tolerate it, and should avoid it. Many vitamin C products are also oily, which can be problematic for those with oily skin, so Herrmann recommends consulting with your board-certified dermatologist to find a brand or product that’s right for your skin type.

One of the most debated topics when it comes to vitamin C is the best time of day for application. While some argue that the morning is best for protecting the skin, others prefer the night when the skin’s vitamin C is less. According to Herrmann, consistency is the most important, if you decide to apply in the morning or before bed, but avoid using benzoyl peroxide at the same time. She also recommends that you use it every day or every other day, and if you are using a serum (the main carrier of vitamin C), apply it after cleansing.

As great as it is, vitamin C is not without challenges. First, it is unstable and reactive and easily loses its antioxidant properties when exposed to heat, light, and air. As an improvement, cosmetic companies have jumped on the powder form of vitamin C to help improve stability, which, in theory, will make it last longer and increase shelf life.

Unfortunately, however, Herrmann says it’s not as simple as just mixing one part C-powder with one part of your favorite moisturizer; Vitamin C also does not penetrate easily into the skin. “Depending on the skin care regimen, applying vitamin C can do nothing at all or act as a powerful antioxidant,” added Guanche.

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To be effective, Herrmann says vitamin C must be at least 10 percent, and the pH of whatever you add must be acidic to allow absorption. “It’s hard to know the pH of the product, even if you get it right, the powder can irritate the skin before it has a chance to absorb, which is to make it effective.” For this reason, Herrmann advises against DIY changes. “I think it’s smart to stick to high-quality products that are the result of extensive research and development to ensure that vitamin C is available in the best formulation for stability and penetration into the skin,” Herrmann said.

Herrmann also recommends looking for well-researched forms of vitamin C—such as L-ascorbic acid—and choosing a formula that includes vitamin E, which helps stabilize vitamin C.

Takes every opportunity to use high-quality sources, including peer-reviewed studies, to support the facts in our articles. Read our editorial guidelines to learn more about how we keep our content accurate, reliable and trustworthy. A diet that includes foods rich in vitamin C such as oranges, kiwi, and peppers helps more than just the immune system.

Vitamin C (also known as L-ascorbic acid) is one of the most talked about vitamins. The nutrient gets a special buzz for its ability to boost immunity. But taking advantage of vitamin C’s ability to slow down the common cold only scratches the surface of its role in the body.

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Antioxidants are not made naturally by the body, so it’s important to get them from foods rich in vitamin C, according to the Mayo Clinic. “Vitamin C can be found in a variety of foods, including red and green bell peppers, citrus fruits, kiwi, broccoli, tomatoes, and Brussels sprouts,” says Tamar Samuels, RDN, founder of Health Culina in New York City.

Adult women need 75 milligrams (mg) of vitamin C per day, and adult men need 90 mg, according to the National Institutes of Health (NIH). Most Americans get enough nutrition from food alone.

The body binds vitamin C to collagen, which is found in connective tissue around the body, according to the NIH. “Adequate vitamin C levels are essential for collagen production,” says Samuels. “Collagen is the most abundant protein in the body and plays an important role in connective tissues such as those found in our organs and of course hair, skin, and nails.”

You may know collagen as an anti-aging skin savior as some health and beauty experts claim. A study published in September 2015 in Clinical, Cosmetic, and Dermatology

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It has been found that applying vitamin to the body

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