5 Best Korean Hyaluronic Acid Serum 2021

by Jih Yun

Provide your skin with intense hydration with the best Korean hyaluronic acid serum. Read on to find the hyaluronic acid serum from top Korean brands that suits your skin type! 

Hello water babies —  I thought that was most appropriate considering you’re looking for the best way to hydrate your skin with a Korean hyaluronic acid serum.

Top Korean Hyaluronic Acid Serum: Quick Summary

Best Korean Hyaluronic Acid SerumBest forNotable Ingredients
Cos De BAHA Pure Hyaluronic Acid SerumFor All Skin Types (Including Sensitive Skin)Purified Water, Sodium Hyaluronate, 1,2-Hexanediol
Mizon Original Sum Skin Eneronic Hyaluronic Acid 100All Skin Types —  works especially well with Dry SkinSodium Hyaluronate, Ceramide, Tropolone, Raspberry Extracts
Elizavecca Milky Piggy Hyaluronic Acid 100% SerumAll Skin TypesWater, 1,2-Hexanediol, Sodium Hyaluronate
Elizavecca Hell Pore Control Hyaluronic acid SerumOily SkinHyaluronic Acid, Niacinamide, Arginine, Adenosine, Allatoin
TIAM Hyaluronic Water Plumping SerumDry, Dehydrated and Damaged SkinHyaluronic Acid Complex (HA-6), Lotus Extract, Panthenol

In this article, we’ll demystify everything about this ingredient, go through a range of products, understand how they work and answer some of the most asked questions about picking hyaluronic acid as a skincare ingredient.

What is hyaluronic acid?

Let’s get one thing out in the open: Hyaluronic acid is already produced by our bodies, but as you start ageing,  its levels start to decline in our skin, thus leading to drier, duller skin. 

No wonder you need a replenisher – and hyaluronic acid serums are just right for the job. In simple words, hyaluronic acid does the task of boosting firmness in the skin, slowing down future fine lines and wrinkles. 

If you’re looking for immediate results, you’ll find those too: Wake up with a dewy texture and glowing skin every day.

Hyaluronic acid in reality is one of the only few skincare ingredients that aren’t too good to be true. It isn’t a wonder molecule, but it does everything it claims. 

You must’ve heard this a lot — 

Hyaluronic acid hydrates your skin. But do you know how that works?

There have been bold claims about how hyaluronic acid can hold about 1000 times the weight in water, and well, it is true. Hyaluronic acid is formulated and used to take care of your epidermis — the outer layer of your skin. The acid can work in two ways, either it attracts water molecules from the environment around you or from the dermis, which is the layer of skin beneath the epidermis.

But a lot of other factors go into consideration — the humidity around you, pH, osmotic gradient etc. 

Benefits of hyaluronic acid serum

Hyaluronic acid’s water-loving ability paves way for numerous benefits that can completely change the way your skin looks in the long run. Here are some of them —

  • This agent seeps into the skin and accelerates the process of healing wounds in the skin, also aids the process of growth of new skin. If perhaps, your skin is already healthy, it aids more in the maintenance of the epidermis, which ultimately deals with new cell growth.
  • Hyaluronic acid phenomenally heals wounds with its anti-inflammatory properties. Its lighter molecular weight actually helps the immune response, thus healing wounds thoroughly. And you know serums are a highly concentrated form of skincare ingredients. So you can imagine now what a few drops of Korean hyaluronic acid serum can do to your face.
  • There have been proven studies that prove that a good hyaluronic acid serum helps the appearance of visible wrinkles, fine lines by improving the skin’s elasticity.

Related: Why You Won’t Find Korean Serum Retinol

How to choose the best Korean hyaluronic acid serum?

In my reviews below,  I think I have done justice by explaining what each star ingredient does for your face. I personally have a combination skin type, leaning towards dry. So make sure to pick one that works out best for you. 

Our team skincare experts at Best Korean Products reviewed these Korean hyaluronic acid serums based on their hydration power, moisture protection and post-applying comfort on the skin. 

I’d urge you to take extensive notes of your skin, do a patch test if you must and decide what is the best Korean hyaluronic acid serum for your skin.

Top Korean Hyaluronic Acid Serum

Cos De BAHA Pure Hyaluronic Acid Serum

Best Korean Hyaluronic Acid Serum for All Skin Types

I love how simple and uncomplicated this serum was. All it contained was Purified Water, Hyaluronic Acid, 1,2-Hexanediol, which meant I didn not have to worry about any reaction or irritation that could have appeared on my face. 

The inclusion of  1,2-Hexanediol in this duo formula just felt like an additional layer of much needed hydration to my skin. All the dryness and flakiness that seemed to persist was noticeably reduced within just a week’s use. 

If your skin is oily, you might experience some discomfort in terms of feeling the stickiness of the surface of your skin because of its thick consistency.

Additionally, the serum claims to bring the pH level of the skin to a 6.5. My skin did start to feel as if it was reaching a smooth ‘normal’. 

best korean hyaluronic acid serum

I purchased the 50 ml glass  , and it lasted me about 3 months. For as long as it lasted me, I did not have any complaints. You can also find a larger bottle with a pump style nozzle. 

Because of its consistency, I’d say I only use this serum in my PM routine. The film feels comforting, and it remains true to its job and feels supremely hydrating and plumping. All in all, I think this justifies why this serum made it to the list of best Korean hyaluronic acid serums.

Related: Best Korean Moisturizer

Mizon Original Sum Skin Eneronic Hyaluronic Acid 100

Best Korean Hyaluronic Acid Serum for Dry Skin

Can I just start by saying, how cute is the little blue glass bottle? If I’m being completely honest, I may have let the cuteness affect the buying decision. But it’s not all good. The swivel around the cap is plastic which gets stuck sometimes, causing me to drop the bottle. Luckily it didn’t break. 

Let’s talk about the ingredients. I have been going on about Hyaluronic acid and its form — Sodium Hyaluronate. While this serum claims to be hydrating, I think it’s kind of lacking. 

The ceramides in the serum are like fat molecules that help retain the pre existing moisture, which the serum fairly does. 

Tropolone is simply an antibacterial preservative to keep your skin from reacting, whereas the raspberry extracts in the serum act as antioxidants the help your skin further itself away from being prone to damage. 

What adds to the bargain is the texture of the serum. It’s light on the skin and has a silky feeling to it. Your skin can feel slightly sticky right after you apply it, but soon after it dries, the stickiness also disappears.

From my experience, I’d call this Korean hyaluronic acid serum more preventative than any action to heal the existing problem. 

Maybe it is slow working — because I only purchased a 30ml bottle and I didn’t see much effects in terms of it affecting the hydration of my skin, but it did start to feel smoother and moisturized. 

Additionally, I did not have any breakouts the entire time I used this hyaluronic acid serum.

During the course of the use of this serum, my skin felt moisturized, but I didn’t get the hydration I wanted, neither did it feel absolutely comfortable to wear during the day. 

For this price, you can get the Elizavecca Milky Piggy Hyaluronic Acid 100% Serum for 5 times the quantity and it’s far more lovely. 

Related: Top Korean Essences

Elizavecca Milky Piggy Hyaluronic Acid 100% Serum

Best Korean Hyaluronic Acid Serum for All Skin Types

I began raving about this even before I started reviewing it, so here goes — 

Technically, this serum has the exact same ingredients as the Cos De BAHA Pure Hyaluronic Acid Serum, but I find it far more effective and even economic. 

The consistency is kind of runny and doesn’t feel heavy on the skin, unlike the Cos De Baha serum. This means that it will work well for people with all skin types. It successfully did a good job of eliminating any dry patches I had on my skin. 

The simplicity of the product makes it targeted towards your skin. Don’t let the piggy in the name scare you away. 

I used it at night, and when I woke up, I was pleasantly surprised with a soft, plump feeling on my skin right after the first use!

Honestly, I’m a bit iffy about ordering large glass bottles, but this came intact and ready for me to use. The heavy frosted glass bottle looks great but can be a bit frustrating if you’re thinking about travelling. 

I’d recommend pouring some from this pour-over bottle into a dropper style bottle if you have one. 

I’d give full marks for everything. Hydration power, ability to moisturize and post-applying feeling. In fact, it is one of the favourite Korean skincare products and definitely one of the best Korean hyaluronic acid serums I have had on my shelves in the years of reviewing that I have done. 

Related: Best Korean Jelly Mask

Elizavecca Hell Pore Control Hyaluronic acid Serum

Best Korean Hyaluronic Acid Serum for Oily Skin

I clearly liked the Elizavecca Hyaluronic 100 so much so that I bought another one simply to try it out, even though it doesn’t typically suit my skin type. Because who doesn’t want hydration and more control. 

Ah, this serum is packed with goodness. Even though it claims it’s best for oily skin, it suited my skin just fine. Look at the ingredients: Hyaluronic Acid, Niacinamide, Arginine, Adenosine, Allatoin. 

Make sure to cleanse your skin before using this, because the niacinamide will act on your pores to make their appearance smaller. 

I did feel the Allatoin work on my skin as it seeped through and promoted the healing process, moisturized skin and probably rejuvenated my cells from within as it joined hands with our star ingredient hyaluronic acid.

The adenosine acts as an anti-wrinkle agent that helps smoothen out the skin and restore the soothing comfortable feeling. I did feel the serum work its way in to do just that, so I can vouch for it. Arginine on the other hand acts as an antioxidant that helps prevent any breakouts.

I won’t lie, I dropped this bottle twice, but the glass bottle is sturdy enough, phew.  The dropper just exudes ease and convenience in comparison to the one we saw above. When I smeared a few drops on the back of my palm, it didn’t feel runny or thick, it was somewhere in between, like coagulated water.

For oily skin, this is the holy grail, because it doesn’t leave an ounce of stickiness on the skin and is quick drying. For drier skins, you’ll experience dry patches wading away. 

I experienced the hydration and moisturizing effect that it claims. I did feel comfortable enough to layer products on this when I wore it in the day.

Related: Best Korean Anti aging Skincare

TIAM Hyaluronic Water Plumping Serum

Best Korean Hyaluronic Acid Serum for Damaged Skin

The minimalist in me was really piqued by the packaging, but what’s more impressive, is the combination of ingredients jam-packed in this 40 ml bottle. In my experience, this is a special formulation for those who have dry and damaged skin that is practically dehydrated.

The main claim of this Korean hyaluronic acid serum is to ‘quench the thirst’ of the skin. At the end of the month of my use of this serum, I can satisfactorily say that my thirst has been quenched. 

In fact, my skin felt supple and bouncy too. A major contribution to that is from the Hyaluronic Acid Complex (HA-6) present in the formulation. 

This combination provides a packed experience to the skin. Right from it receiving intense doses of hydration to maintaining it throughout the day on every layer of the skin. The moisture is locked in from one of the complexes and works to enhance the freshness in your look!

At the end of my month with this serum, I felt the lotus extract working its magic and enhancing the elasticity of my skin. Panthenol, on the other hand, worked to enhance my skin’s barrier and kept it feeling soothing. 

Consistency wise, you could say it was leaning towards milky thick. It isn’t fast-drying, so it can feel a bit heavy on the skin, especially if you’re planning to layer it under your makeup for the day. 

My advice would be to rub it in a little bit so it speeds up the process. Or just be patient and give it a few minutes to seep into your skin! 

Hydration and moisture wise, this serum is excellent. When it comes to comfort on the other hand, other than the waiting period for it to dry, it is manageable. 

Related: Best Korean Skincare for 40s

More on Korean Hyaluronic Acid Serum

Eradicating Confusion on hyaluronic acids

Not all hyaluronic acids are called the same. It is possible that you’ll come across the name hyaluronan or sodium hyaluronate or even potassium hyaluronate — they’re all from the same family.

If your humectant serum has no additional occlusives or emollients, make sure to complete your skincare routine with ingredients that have occlusive properties. Ensuring that means minimizing the possibilities of water loss from your skin.

You see, hyaluronic acid is a humectant. 

Humectants are only responsible for drawing water to the skin and keeping those water molecules bound. It is a good occlusive that helps you fill in the dry areas and create a film on top of the skin that prevents water loss. Adding something with squalene or mineral oil in your skincare routine should do the trick.

Best Korean Hyaluronic Acid Serum: FAQs

How to include Korean hyaluronic acid in the skincare routine?

The one most important rule of layering skincare is putting the lightest product first and following it by heavier, denser products. Another thing to remember is the products you’re using.

People generally use hyaluronic acid that is either in serums and moisturizers. But since this article is about the best Korean hyaluronic acid serums, let’s talk about that.

Simply pat dry your skin after cleansing. If you use a toner, use that, if not, you can go ahead and gently squeeze a few drops of your hyaluronic acid serum directly on your face and with the palm of your hands, apply it in an upward direction.

Don’t forget to lock this in with a moisturizer.

How does the molecular weight of hyaluronic acid make a difference?

In simple words — size matters. While it may not be true for everything else, when it comes to the size of the hyaluronic acid molecule size, it makes a huge difference. You’d be surprised to know that there are 6 different sizes of molecules when it comes to this particular ingredient, all having effects ranging from highest to lowest. 

Larger molecules that are heavier in weight find it harder to penetrate through the skin. They remain on the surface and act as a hydrating agent. Because they remain on the surface, they act faster and thus it may seem like it is the most effective. But this also means that the results are short-lived. In fact, the results only last as long as the time you wash your face next.

The smallest molecules with low weight penetrate deep within the skin, acting from inside out. They train the skin to sustain and store moisture content and create long-lasting impacts. But because it can affect your skin from the inside, you can also be prone to skin inflammation.

Dermatologists usually recommend a hyaluronic acid serum or any other product with medium-small to medium-sized molecules since they are the ones that are most effective without causing breakouts on the skin.

I have actually created a table that will help you understand the effects of various effects of the size of the hyaluronic acid salt sodium hyaluronate, the most commonly found ingredient in the hyaluronic acid serums.

It is possible that you won’t find this information on the label. It is usually the brands’ discretion, whether or not they want to reveal this information about their ingredients.

Type of Hyaluronic AcidEffect on Skin
High Molecular WeightEffects are short-lived

Moisturizes the surface of the skin

Has an anti-inflammatory result
Medium Molecular WeightHas long-lasting effects

Gets stored in connective tissues of the skin
Low Molecular WeightHas long-lasting effects

Persistent anti-wrinkle effect

Gets stored in connective tissues of the skin
Lowest Molecular WeightWorks in the deepest layers of skin

Helps in the regeneration of cells

There is no particular conclusion as to what particular molecular weight hyaluronic serum is best for you since it depends on your skin concern. But I have found the best way to approach this is to include multi-weight products in your skincare routine in order to achieve the best results.

Supposedly you pick a low molecular weight serum, you can pair it with a moisturizer that has one of the ingredients as hyaluronic acid with heavier molecules. Taking notes of your skin and doing research accordingly can help you identify what’s best for your skin.

Related: Best Korean Anti Aging Eye Cream

What foods are rich in hyaluronic acid?

All that being said, know that too much of anything can be harmful. Knowing that hyaluronic acid is already present in our bodies, it is safe to say that there are ways to increase and boost the production of hyaluronic acid naturally as well. 

There are some hyaluronic acid foods that you can eat that will stabilize the production over a consistent period of time. Some of the greatest examples are water-rich vegetables like cucumber and celery. But other than that, including root vegetables, bone broth and sweet potatoes in your diet is also helpful.

Can I use hyaluronic acid serum every day?

Yes, you can use a hyaluronic acid serum every day, provided you’re applying it to clean skin that is freshly washed and damp. In fact, you can apply it twice a day by incorporating it into your AM and PM routine. Remember to wait a few minutes and lock the effects of your skin by following it up with a moisturizing cream and face oil.

Can the hyaluronic “acid” serum cause any side effects?

It is unlikely that this ingredient will cause any sort of eruption or negative reaction to your skin considering it is already found in your body. The external use of hyaluronic acid is simply done in order to replenish the skin with the amount required to resume skin elasticity.

What should you not use hyaluronic acid with?

Hyaluronic acid fits the label of a universal ingredient well. It suits all skin types and some hydration for the skin cannot hurt anyone. However, using it with glycolic acid might just make using hyaluronic acid serums moot. The low pH levels of glycolic acid may cancel out any effect that hyaluronic acid may have on you.

As for what it works best with, I’d say Retinol. In fact, if you’re using retinol, I’d urge you to use hyaluronic acid with it. Retinol, as an ingredient, can have an intensely drying effect on the skin, apart from working its magic. Pairing it with hyaluronic acid can help minimize the irritation by keeping the skin hydrated.

While the retinol helps proliferate cell generation and helps in boosting collagen, the hyaluronic acid will help draw water from under the skin to help regenerate the used hydration and make it ultimately plump and fresh!

Related: Best Korean Skincare for 30s

What percentage of hyaluronic acid is best in a serum?

It is safe to assume that most of you think that the higher the concentration, the more effective it is. But that is not always true. In fact, dermatologists actually suggest that you go for formulations that have 1% hyaluronic acid. Anything higher than 2% can actually cause some skin irritation and inflammation.

Does hyaluronic acid serum make your face peel?

This sort of result is conditional and not very common. It is possible that if you have skin that is extremely dry, hyaluronic acid will counteract and pull moisture from within your skin and make it even drier. It can leave your skin feeling taut, tight and the complexion dull.

Another factor that might play a role in this is areas with low humidity levels —  the lack of moisture in the environment plus extremely dry skin cannot be treated with hyaluronic acid.

And there it is — all about Korean hyaluronic acid serum you need to know! Hopefully this post helped you pick the right Korean hyaluronic acid serum for your skin! 

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Cos De BAHA Pure Hyaluronic Acid Serum

Check out the best Korean hyaluronic acid serum here!

Product SKU: 0026554POK855633

Product Brand: Cos De

Product Currency: USD

Product Price: 9.99

Price Valid Until: 2021

Product In-Stock: InStock

Editor's Rating:

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