Aqua Pure Hyaluronic Serum 30ml
A hydrating serum, sold in a 30ml bottle, for skin that wants water in the middle step rather than richness.
No reviews yet30 ml
$83.33 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- Normal skinCombination skinOily skinDry skin
- Helps with
- Daily hydrationA light middle stepA smoother base for cream
In stock. Arrives in 3 to 7 business days
We accept
You’re $100.00 away from free US shipping.
- 30-day returns
- Free US shipping on orders of $100 or more
- Tracked delivery to your door
Key benefits
- concentrates its formula into a single, fast-absorbing step
- carries the intact Korean-market packaging and batch code rather than an over-labeled substitute
- layers cleanly into a multi-step Korean routine without pilling
- is sized for the way it is actually sold and used on Korean shelves
Inside the formula
Inside the formula
How to use
- Use it twice a day after the watery step, on a clean face and before any cream.
- Warm a small amount between the fingertips first, then press it over the cheeks, forehead and chin.
- Give it thirty seconds to settle before the next layer goes on, which is what keeps anything from balling up.
- Avoid applying it to skin that is completely dry after a long gap, since a thin layer spreads much further on damp skin.
What is this product, and who is it for?
It is a hydrating serum in a 30ml bottle, made for skin that wants water in the middle step rather than richness. It is doing a narrower job than an all-purpose lotion, and that is the reason it goes on before one. The honest measure is the way the skin looks in the mirror once everything has settled.
Do I use this before or after moisturizer?
Before the moisturizer, always. A serum is the thin, concentrated step and a cream is the layer that holds it in place, so putting the cream on first leaves the serum sitting on top of a barrier it cannot get under. Toner, serum, cream, sunscreen is the sequence in the morning, and the same without sunscreen at night.
How often should I apply it?
Twice a day is the usual rhythm, morning and evening, with a small amount each time. Start with a pea-sized dab and only add more if it does not cover. If your skin is new to a concentrated step, every other evening for the first week is a gentler way in than twice a day from the start.
Will it pill under sunscreen or makeup?
Pilling is almost always a timing problem rather than a formula one. Apply a thin layer, wait until the surface is no longer tacky, then put sunscreen or a base on top. Using too much is the other common cause, so start with a small amount. Pressing rather than rubbing the next layer on also helps it sit flat.
Is this the Korean formula, or a US version of it?
This is the Original Korean Formula, bought in the 30ml bottle sold for the Korean market rather than a US reformulation. Barcodes and batch codes stay intact on the box.
Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, essential oils, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (43): Water, Butylene Glycol, Propanediol, Dipropylene Glycol, Glycerin, Glycereth-26, 1,2-Hexanediol, Panthenol, Trehalose, Carbomer, Arginine, Sodium Hyaluronate, Allantoin, Polyglyceryl-10 Laurate, Ethylhexylglycerin, Dipotassium Glycyrrhizate, Glacial Water, Sodium Phytate, Dextrin, Betaine, Gardenia Florida Fruit Extract, Salvia Hispanica Seed Extract, Centella Asiatica Extract, Houttuynia Cordata Extract, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate Crosspolymer, Potassium Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Hydrolyzed Sodium Hyaluronate, Hyaluronic Acid, Pentylene Glycol, Caprylyl Glycol, Caprylic/Capric Triglyceride, Squalane, Sodium Acetylated Hyaluronate, Hydrogenated Lecithin, Polyglyceryl-10 Myristate, Ceramide NP, Sucrose Distearate, Glycine, Lauric Acid, Phytosterols, Glutamic Acid
Ingredient list read from beplain.co.kr on 30 August 2026.
42 of 43 explained
- Water solvent
- Water is the base almost every serum, toner and cream is built on. It dissolves the water-loving ingredients and sets how light the finished texture feels. On an INCI list it is usually first, which only means it is the largest single ingredient by weight.
- Butylene Glycol humectant
- Butylene Glycol is a small glycol that does two jobs at once: it holds water in the top layer of skin and it dissolves plant extracts and actives that plain water cannot. It also thins a formula, which is why watery Korean essences lean on it.
- Propanediol humectant
- Propanediol is a plant-derived glycol used in place of propylene glycol. It hydrates, carries actives into solution, and gives a lighter, less sticky slip than glycerin at the same strength.
- Dipropylene Glycol humectant
- Dipropylene Glycol is a glycol used as a solvent and a light humectant. Its main job is keeping the rest of the formula dissolved and the texture fluid rather than adding hydration of its own.
- Glycerin humectant
- Glycerin is the most used humectant in skincare. It draws water into the outer layer of skin and holds it there, and it is one of the very few ingredients whose hydrating effect is settled science rather than marketing. Higher amounts feel tacky, which is why it is usually blended.
- Glycereth-26 humectant
- Glycereth-26 is a modified glycerin that hydrates with far less stickiness than glycerin itself. It is a common way to load water into a formula that has to stay light.
- 1,2-Hexanediol humectant
- 1,2-Hexanediol is a glycol used for two reasons: it holds water like glycerin, and it makes a formula harder for microbes to live in, so less traditional preservative is needed. Korean formulas use it heavily for that second reason.
- Panthenol humectant
- Panthenol is pro-vitamin B5: skin converts it to pantothenic acid. It is a humectant that holds water and leaves skin feeling soft and less tight, and it is one of the ingredients formulators reach for when a formula also contains something harsh.
- Trehalose humectant
- Trehalose is a sugar that some desert plants use to survive drying out. In skincare it is a humectant that holds water in the outer layer and helps a formula feel comfortable rather than tight.
- Carbomer thickener
- Carbomer is a synthetic polymer that only gels once a base neutralises it, which is why arginine or tromethamine sits nearby on the list. It gives the clear, non-stringy gel texture a xanthan formula cannot reach.
- Arginine amino acid
- Arginine is an amino acid that does two jobs here: it holds water in the outer layer of skin, and it neutralises acidic gelling agents, which is why it often stands in for a synthetic pH adjuster.
- Sodium Hyaluronate humectant
- Sodium Hyaluronate is the salt of hyaluronic acid, and it is what most products labelled hyaluronic actually contain. The salt dissolves more readily and the molecule is smaller, so it sits in the outer layer of skin rather than only on top of it.
30 more explained
- Allantoin active
- Allantoin is a comfrey-derived compound used to condition skin and soften the outer layer so it feels smoother. It is one of the standard additions to a formula built for easily irritated skin.
- Polyglyceryl-10 Laurate emulsifier
- Polyglyceryl-10 Laurate is a sugar-derived emulsifier and solubiliser, mild enough to be a standard choice in Korean essences. It dissolves small amounts of oil into water without any tightening feel.
- Ethylhexylglycerin preservative booster
- Ethylhexylglycerin softens skin and boosts a preservative system, which is why it is nearly always sitting beside phenoxyethanol or 1,2-hexanediol. It also cuts down the odour bacteria produce, so it turns up in deodorising products.
- Dipotassium Glycyrrhizate active
- Dipotassium Glycyrrhizate is a water-soluble salt derived from licorice root. It is the licorice fraction Korean formulas use for the look of redness, and it is far more stable in water than the whole extract.
- Glacial Water plant extract
- Glacial Water is meltwater collected from glacier ice, used in place of ordinary water as a formula base. It is water with its own mineral profile rather than an active.
- Sodium Phytate chelator
- Sodium Phytate is a rice-derived chelator used in place of EDTA. It ties up trace metals so the formula stays stable and its colour and scent hold.
- Dextrin thickener
- Dextrin is a starch fragment used to thicken and to give a formula a light, powdery finish. It is also a common carrier for powdered extracts.
- Betaine humectant
- Betaine is a sugar-beet-derived humectant that cells use to hold water. In a formula it hydrates and takes the edge off cleansers and acids, which is why it often appears alongside them.
- Gardenia Florida Fruit Extract plant extract
- Gardenia Fruit Extract is the traditional East Asian yellow dye plant. In skincare it is used as an antioxidant extract, and it can tint a formula.
- Salvia Hispanica Seed Extract plant extract
- Chia seed extract. Chia seed swells into a gel in water, so the extract hydrates and leaves a cushioned feel.
- Centella Asiatica Extract plant extract
- Centella Asiatica is the plant behind the whole cica category, sold as gotu kola or Madagascar centella. Its extract is the anchor of Korean formulas built for easily reddened skin, and its work is done by four triterpenes: asiaticoside, madecassoside, asiatic acid and madecassic acid.
- Houttuynia Cordata Extract plant extract
- Houttuynia Cordata is heartleaf, and it is one of the two or three anchor plants of Korean calming skincare. Its extract carries quercitrin and other flavonoids and is used for the look of redness and blemish-prone skin.
- Hydrolyzed Hyaluronic Acid humectant
- Hydrolyzed Hyaluronic Acid is hyaluronic acid cut into much shorter fragments. The smaller the fragment, the further into the outer layer it can settle, which is why serums stack several sizes together instead of using one.
- Sodium Hyaluronate Crosspolymer humectant
- Sodium Hyaluronate Crosspolymer is hyaluronic acid linked into a mesh. It holds water in a soft gel on the surface rather than sinking in, and it releases that water slowly through the day.
- Potassium Hyaluronate humectant
- Potassium Hyaluronate is another salt of hyaluronic acid, used for the same reason as the sodium form: it dissolves easily and holds a large amount of water in the outer layer of skin.
- Hydroxypropyltrimonium Hyaluronate humectant
- Hydroxypropyltrimonium Hyaluronate carries a positive charge, and skin carries a slight negative one, so it is attracted to the surface and stays through rinsing. It is the hyaluronic used where a formula gets washed off.
- Hyaluronic Acid humectant
- Hyaluronic Acid is a sugar chain the body already makes, and one gram of it can hold several litres of water. In a formula it is a humectant that pulls water to the surface of skin and holds it in a film, which is what makes skin look plumper while it is there.
- Pentylene Glycol humectant
- Pentylene Glycol hydrates and, like the other longer-chain glycols, makes a formula less hospitable to microbes so the preservative system can be lighter. It also improves how evenly a product spreads.
- Caprylyl Glycol preservative booster
- Caprylyl Glycol is a glycol that conditions skin and, more importantly, strengthens a preservative system so less of the traditional preservative is needed. It appears in most modern formulas built without parabens.
- Caprylic/Capric Triglyceride emollient
- Caprylic/Capric Triglyceride is the light fraction of coconut oil, with the heavy parts removed. It is the workhorse emollient of modern formulas: it softens skin, dissolves oil-soluble actives and absorbs without the greasy weight of a whole plant oil.
- Squalane emollient
- Squalane is the stable, saturated version of squalene, a lipid human skin already makes. It is a light emollient that absorbs quickly, does not oxidise, and is one of the few oils widely considered safe for blemish-prone skin. Most cosmetic squalane is now from sugarcane or olive rather than shark.
- Sodium Acetylated Hyaluronate humectant
- Sodium Acetylated Hyaluronate is hyaluronic acid modified to be part oil-loving, so it clings to skin instead of rinsing away. Formulators call it the one that stays put.
- Hydrogenated Lecithin emulsifier
- Hydrogenated Lecithin is lecithin with its unsaturated bonds filled in, which makes it far more stable. It emulsifies and is the standard shell for the liposomes that carry actives into the outer layer of skin.
- Polyglyceryl-10 Myristate emulsifier
- Polyglyceryl-10 Myristate is a mild sugar-derived emulsifier used to keep oil dispersed in a watery formula.
- Ceramide NP barrier lipid
- Ceramide NP is the most used cosmetic ceramide, the same class of lipid that makes up roughly half the mortar between cells in the outer layer of skin. Added to a cream it slots into that structure, which is why ceramide formulas feel less leaky rather than merely greasy.
- Sucrose Distearate emulsifier
- Sucrose Distearate is a sugar-based emulsifier that is mild and gives a light, silky feel. It also conditions skin.
- Glycine amino acid
- Glycine is the smallest amino acid and one of the free amino acids skin holds to keep water in the outer layer. In a formula it is a humectant and a mild buffer.
- Lauric Acid fatty acid
- Lauric Acid is the coconut fatty acid that gives soap-style cleansers their dense foam. It is not well suited to blemish-prone skin at high levels.
- Phytosterols emollient
- Phytosterols are plant sterols, structurally close to the cholesterol in skin's own lipid layer. They soften skin and help the oil phase of a formula hold together.
- Glutamic Acid amino acid
- Glutamic Acid is an amino acid used as a humectant and a mild pH adjuster. It is one of the components of skin's natural moisturising factor.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809623945284
- Made in
- Republic of Korea
- Volume
- 30 ml
- Category
- Serum & Ampoule
- Actives
- Allantoin, Centella Asiatica, Ceramide NP, Heartleaf (Houttuynia Cordata), Hyaluronic Acid, Licorice Root, Panthenol, Sodium Hyaluronate, Squalane, Trehalose
- Ships from
- California or Korea
Orders ship from California or direct from Korea with tracked delivery to your door, and both routes carry the same Korean-market release. Shipping is free on orders of $100 or more. Returns are accepted for 30 days, by mail.
We split shipments free, so one out-of-stock item never holds up the rest of your order.
Where this unit came from
- 1Seoul
Bought as Korean-market stock - 2Barcode
Listed against the Korean barcode on its box - 3California or Korea
Ships to you from either, as the same Korean-market release
We stock the version of a formula that is sold in Korea, not the release a brand prepares for another market under the same name. The barcode in the specification above is the Korean-market one and it is printed on the box you receive.
Every unit keeps its original barcode and batch code intact, so the unit in your hands can be checked against the brand’s own records.
Every order ships from California or direct from Korea, and returns run for 30 days.
Every claim on this page traces to the unit in the box, the barcode, the batch code and the price you can read for yourself.
How it works
It is a light fluid that spreads from a few drops and sinks in on damp skin. Because it brings water rather than oil, it needs a moisturizer over it to stay put. A moisturizer cannot do the same thing here, because it is spread thicker and does more general work. It belongs in the middle of a routine, once the water step is on and before anything occlusive. You can judge it on how quickly it settles and how the face looks once the cream is on over it.
Worth knowing
- Patch test on a small area of the jaw first if your skin reacts easily to something new.
- Follow it with a moisturizer rather than leaving it as the last step, or the layer dries off.
Complete the routine
- This itembeplain Aqua Pure Hyaluronic Serum 30ml$25.00

- The treatment step of this routinebeplain BHA Peeling Ampoule 30ml$27.50

- Cleanse first, so the next step meets bare skinbeplain Mung Bean pH-Balanced Cleansing Foam 80ml$17.50

Total for 3 items$70.00
Reviews
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beplain Aqua Pure Hyaluronic Serum 30ml
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
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beplain, Korean-market original
A hydrating serum for skin that wants water in the middle step rather than richness, sold in the Original Korean Formula.
Verify your unit when it arrives
Verify your unit when it arrives
Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.
On the unit itself
- The Korean-market barcode, unaltered from the retail package.
- The manufacturer’s batch code, exactly as the maker printed it.
정품Genuine article, Korean-market stock
What professionals say
What professionals say
What skin-care professionals say about skin care, quoted from the medical sources linked beside each.
Your skin barrier is basically your outer layer of the skin.
Melissa Piliang, MDDermatologist, Cleveland Clinic Pretty much every step of a Korean skin care routine is going to have some component of hydration.
Alok Vij, MDDermatologist, Cleveland Clinic
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