5 Best Korean Vitamin C Serums of 2022

Vitamin C is one of the best natural elements we can use if we want to take care of our skin: its formula is perfect to improve the appearance of fine lines and wrinkles, fade hyperpigmentation, nourish and hydrate skin, and treating scarring and blemish. If you’re looking for an ingredient to include in your skincare routine, Pure Vitamin C is the one to chose.

In this buying guide, I’ll recommend the best Korean Vitamin C Serums you can buy in 2022. Since this ingredient is seemingly at an all-time high, in this article you will also find everything about Vitamin C, why it works, how it works: the goal is to help you chose the best Vitamin C Serums to repair dullness skin or just to take care of your skin.

What is Vitamin C?

Vitamin C is a powerful antioxidant, meaning it can prevent or reduce damage to our cells by neutralizing the production of free radicals. To be more clear, Vitamin C helps your body and skin stay healthy. It’s not a mystery that when we are kids our parents and grandparents always tell us to drink orange juice, and the same happens when we are sick or we feel tired. It is safe to say that Vitamin C is one of the safest and most effective nutrients.

Vitamin C: Benefits for the Skin

Vitamin C is fundamental for our skin because it helps collagen synthesis. If this is not that important when we are young, it’s fundamental when we age: in fact, collagen and elastin give the skin both firmness and elasticity but their structure begins to break down when we age, meaning that we start losing firmness and elasticity.
L-ascorbic acid, aka Vitamin C, penetrates into the layer of our skin bringing a lot of benefits to it.

Some of these include:

  • Produce Collagen Synthesis
  • Protect skin from oxidative damages
  • Improve the appearance of fragile and dull skin
  • Prevent skin from troubles and breakouts
  • Reduce inflammatory lesions
  • Hydrate and moisturise skin

Read Also: Best Japanese Collagen Supplements

5 Best Korean Vitamin C Serums

Based on the above, it looks crystal clear how important Vitamin C is for our beauty and our skin. Here you have a selection with the Best Korean Vitamin C Serum to buy in 2022.

Klairs Freshly Juiced Vitamin C Drop

Klairs Freshly Juiced Vitamin C Drop

Klairs Freshly Juiced Vitamin C Drop is a daily serum that is safe and non-irritating to energize and rejuvenate the skin with the power of Vitamin C. Concentrated Vitamin C and key ingredients from nature provide plentiful moisture and nutrition for the skin.

Read Also: Best Klairs Products

PURITO Pure Vitamin C Serum

PURITO Pure Vitamin C Serum

This PURITO Pure Vitamin C Serum is exactly what it sounds: a serum infused with 10% of vitamin C solution, 84% of hyaluronic acid solution, and other naturally-derived ingredients, to help improve the appearance of wrinkles and fine lines while reducing the appearance of dark circles and acne scars. Can be used in the morning or evening.

By Wishtrend – Pure Vitamin C 21.5% Advanced Serum

By Wishtrend - Pure Vitamin C 21.5% Advanced Serum

Pure Vitamin C 21.5% Advanced Serum by Wishtrend is a non sticky serum that contains just the right amount of Vitamin C. It reduces fine lines, dark spots and wrinkles while illuminating skin and brighting it up. Avoid using products with high levels of AHA, BHA, retinol or ascorbic acid when using the Pure Vitamin C 21.5% Advanced Serum.

SOME BY MI – Galactomyces Pure Vitamin C Glow Serum

SOME BY MI - Galactomyces Pure Vitamin C Glow Serum

SOME BY MI – Galactomyces Pure Vitamin C Glow Serum boasts 3% pure ascorbic acid (vitamin C) and 75% galactomyces ferment filtrate. Galactomyces moisturizes, smoothes skin texture and boosts elasticity, while acting together with Vitamin C for the best result.

Neogen Dermalogy Real Vita C Serum

Neogen Dermalogy Real Vita C Serum

Neogen Dermalogy Real Vita C Serum is enriched with Niacinamide and 22% of Sodium Ascorbyl Phosphate, a stabilized source of vitamin C, along with citrus fruit extracts and vitamin complex (Vitamin E, Vitamin B5) that all work together to brighten and firm the appearance of skin for healthy-looking complexion.

What to Look For in a Vitamin C Serum?

If you are in doubt about what’s the best Korean Vitamin C Serum for you and your needs, here you have a few advice on how to choose the best and what to look for.


The majority of the products use L-ascorbic acid that can simply be called Ascorbic acid. It is Vitamin C at its purest form for beauty, meaning that it doesn’t break easily and it can be mixed with other ingredients. It’s impossible to find just pure Vitamin C, because its structure won’t last and it will break easily when combined. Make sure you choose a water-based serum: water strengthens the power of Vitamin C and, at the same time, allows the product to be applied easily and quickly.

Other ingredients

Together with Vitamin C, it’s common to look for Vitamin E: this is the ingredient that not only boosts collagen but strengthens UV protection and the overall skin protection, making it the perfect allied for Vitamin C.


Make sure you chose the right size: Vitamin C products tend to oxidate, meaning that after a while they lose their power. Don’t go overboard, and buy a product that is good in size and that you can use for a while without problems.

How To Choose The Best Korean Vitamin C Serum

Based on all of the above, make sure you chose a Vitamin C serum with these features:

  • 10-22% L-ascorbic acid
  • Vitamin E
  • Dark glass bottle + Airtight packaging to avoid degradation

How do I store my Vitamin C serum?

Vitamin C serums tend to oxidate when in contact with the light so it’s always better to store them in a dark place or, if you wanna make sure they will last for a long time, in a fridge.

Do I have to use sunscreen with my serum?

You should always use sunscreen, no matter what else you apply onto your face. In the case of Vitamin C serums, this is even more true. In fact, Vitamin C oxidizes when exposed to heat and sunlight and this means that it will not be as effective as it should be and it could lead to skin damage.

Does Vitamin C have side effects?

Usually, Vitamin C is safe to use but the reaction depends on the skin. Side effects can include stinging, redness, dryness, or yellowish discoloration.

How Do I Know When my Serum is Gone Bad?

Vitamin C serums are usually yellowish, and this is an indicator of how good they are. As soon as they start turning brown or orange, it means they have to be tossed. In some cases (like the Klairs), they can be white so it means the turning point is yellow, which indicates that your serum has gone bad.

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