Ascorbic Acid for Skin | Positives and Recommended Serums

Is ascorbic acid good for your skin, and are there any serums you recommend that contain ascorbic acid?

Ascorbic acid should be a staple in your skincare routine.

In fact, if you look close enough, you can find ascorbic acid in most skincare products. It has many crucial benefits for creating a clear and glowing complexion, making it a powerhouse ingredient. 

Read on to find out what ascorbic acid is, if it is good for your skin, as well as answer some common questions like, ‘does ascorbic acid brighten skin?’ and ‘does ascorbic acid clear acne?’

What is ascorbic acid?

You may be more familiar with ascorbic acid - also known as L-ascorbic acid - as vitamin C. It is an essential nutrient that helps repair tissue and produce neurotransmitters. We generally gain vitamin C through food, but it is also a crucial ingredient in skincare. 

Ascorbic acid is the purest and most researched form of vitamin C. The skin needs concentrations of 5-20% to feel the effects of vitamin C. However, foods rich in vitamin C struggle to reach the skin as our cells are the first to absorb it. That’s why ascorbic acid found in skincare products is often synthetically sourced, so we can feel the benefits.

What are the ascorbic acid benefits for the skin?

Most people know vitamin C for treating the common cold, but there is a range of vitamin C benefits for skin. It works by increasing collagen production and protecting the skin barrier. This helps reduce the appearance of wrinkles and pigmentation and protects the skin from damage and free radicals.

Wrinkles and fine lines

Vitamin C boosts collagen production that makes your skin firm and plump. Our bodies lose 1% of collagen every year after aged 20, causing the skin to naturally age.

The body needs vitamin C for the process of collagen synthesis. Ascorbic acid contains prolyl hydroxylase, which stabilizes the collagen molecule. As well as lysyl hydroxylase, which provides structural strength. 

These molecules reduce the effects of aging as they are required for synthesizing collagen production. This creates a tightening effect that prevents sagging skin and can diminish fine lines and wrinkles.

Sun damage

When your skin is exposed to free radicals, like UV rays, your body reduces collagen, damages cells, and may harm DNA within cells. This causes deep wrinkles, pigmentation, and loss of elasticity. 

Although sunscreen is the most effective way to prevent damage caused by the sun. Vitamin C can enhance the protective abilities of sunscreen by neutralizing the free radicals. 

Ascorbic acid slows the rate of free radical damage once the sun rays penetrate the skin barrier. It restricts the rays from harming collagen and helps repair the skin by reducing the sun damage on the skin cells. 


Ascorbic acid has brightening qualities that help to fade the effects of melanin, the pigment responsible for skin color. When melanin is overproduced, our skin develops sun spots, age spots, as well as discolored patches. 

Applying vitamin C to your skin can impede melanin production to fade dark spots. This leaves you with bright skin with a youthful, dewy glow.

The skincare vitamin also has the power to inhibit melanin synthesis. It decreases the activity of enzymes that controls the production of melanin to fade hyperpigmentation and acne scars.

Are there any side effects to using ascorbic acid?

While ascorbic acid has many properties that protect the skin from damage. Some skin types may find it irritating. As vitamin C is difficult to penetrate the skin, the pH is reduced to less than 3.5. However, this makes the product more sensitizing and causes damage to the skin barrier. 

Products with concentrations above 20% of ascorbic acid can harm the skin. Instead, you should look for skincare with 8-20%. Those with sensitive skin types should look for vitamin C products with a lower concentration to feel the benefits. 

How to use ascorbic acid in your skincare routine…

Ascorbic acid is best applied as a serum. As it is difficult for vitamin C to absorb into the skin. Using serums and other topical products helps your skin reap the benefits of ascorbic acid. 

Still, vitamin C should be applied as close to bare skin as possible. It’s best to cleanse, tone, then use vitamin C before moisturizing. It is typically used once to twice a day and can mix with other ingredients. In fact, vitamin E can double the effects of ascorbic acid.

What are the best serums with ascorbic acid?

Here is a list of some of the most popular Korean serums that contain ascorbic acid on Amazon. Click more to find out which products below fit your skin the best.



A lightweight anti-aging serum with several benefits that penetrates deeply into different layers of the skin. You get a potent 15% concentration of Vitamin C that synergistically blends with Hyaluronic Acid and Vitamin E. Some of the main highlights of VITAMIN C 15 SERUM from Cos De BAHA are fading hyperpigmentation increasing skin elasticity, protecting against sun's rays, and impeding melanin production. So if you are concerned about showing signs of aging, then learn more about Vitamin C Serum from Cos De BAHA. 




A gentle and effective serum that includes 5% ascorbic acid which keeps the skin firm and protects the skin from hyperpigmentation. FRESHLY JUICED VITAMIN DROP is developed by Klairs which is known for creating products with raw and safe ingredients that go through intensive testing. The brand formulates their products with sensitive skin in mind in order to effectively address skincare concerns without causing trouble. For the best results, start with a few drops of the serum in the morning and evening after applying a cleanser.



Infused with Niacinamide and Ascorbic Acid along with citrus fruit extract that work together to diminish the fine lines and wrinkles. This Korean serum also contains Hyaluronic Acid to make sure the skin is hydrated and soothing for sensitive skin. Lastly, REAL VITA C SERUM from NEOGEN is also well known for brightening the skin tone and providing radiant look for their consumers. 



This anti aging serum from SOME BY MI is infused with 3% pure vitamin C with 75% ferment filtrate of galactomyces, which are excellent if you are desperate for brightening your complexion. In addition to its brightening capabilities, GALACTOMYCES PURE VITAMIN C GLOW SERUM is packed with ingredients that will increase skin elasticity and target hyperpigmentation to give a more even skin tone.