Dr.Althea
Dr. Althea Aqua Marine Watery Cream$15.29Purito Seoul
Hydro Wave Deep Sea Cream
Purito Seoul Hydro Wave Deep Sea Cream is a cream led by Sea Water (Maris Aqua) on its own ingredient panel, sourced as the Korean-market formula.
No reviews yet50ml
$33.98 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- Normal skinDry skinCombination skin
- Helps with
- Sealing a routine as one of the last steps, morning or nightShoppers who want Purito Seoul's own Korean-market formula rather than a US-shelf version
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Dr. Althea Aqua Marine Watery CreamDr.Althea
$15.29
$19.99
$16.46
- 30-day returns
- Free US shipping on orders of $100 or more
- Tracked delivery to your door
How it works
Sea Water (Maris Aqua) leads the ingredient panel on this cream. Sea Water is filtered and desalinated seawater used in place of plain water. It carries magnesium, calcium and potassium, so it brings the mineral balance of the base closer to skin's own. On this panel it sits alongside Niacinamide, Ecklonia Cava Extract and Laminaria Japonica Extract. Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. It is used at roughly 2 to 5 percent for the look of uneven tone and visible pores, and it is water soluble, stable and comfortable beside almost every other active, which is why it turns up in so many lists.
Key benefits
- Sea Water (Maris Aqua) named on this product's own ingredient panel, near the top of it
- Niacinamide on the same panel, the formula's active
- Ecklonia Cava Extract on the same panel, the formula's plant extract
- 50 ml to a unit
- Korean GS1 barcode matched against a Korea sourcing supplier's record for this item
Inside the formula
Inside the formula
Purito Seoul Hydro Wave Deep Sea Cream
What does Niacinamide do in this formula?
Niacinamide is a tone and texture ingredient that is one of the most widely used actives in current Korean formulas. On this formula's own ingredient list it sits listed after the base and thickeners, still well within the formula's active portion.
Is this the Korean-market formula or a US version?
This is the Korean-market formula Purito Seoul sells on shelves in Korea, not a version reformulated for the US shelf.
What step does this cream go in a routine?
Smooth over the face as one of the last steps of a routine, morning or night.
Can I use this with other actives in my routine?
Niacinamide generally layers well alongside a normal routine; introduce any new active gradually and watch how your skin responds over the first week or two.
Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, essential oils, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (31): Sea Water (Maris Aqua), Dipropylene Glycol, Glycerin, Water, Caprylic/Capric Triglyceride, Niacinamide, Phenyl Trimethicone, Cetyl Ethylhexanoate, Cetearyl Alcohol, 1,2-Hexanediol, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Butylene Glycol, Sodium Hyaluronate, Panthenol, Ecklonia Cava Extract, Laminaria Japonica Extract, Caulerpa Lentillifera Extract, Salicornia Herbacea Extract, Allantoin, Macadamia Ternifolia Seed Oil, Adenosine, Sorbitan Stearate, Sorbitan Oleate, Isohexadecane, Polysorbate 80, Glyceryl Stearate SE, Carbomer, Arginine, Caprylyl Glycol, Ethylhexylglycerin, Disodium EDTA
Ingredient list read from incidecoder.com on 30 August 2026.
31 of 31 explained
- Sea Water (Maris Aqua) mineral
- Sea Water is filtered and desalinated seawater used in place of plain water. It carries magnesium, calcium and potassium, so it brings the mineral balance of the base closer to skin's own.
- 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.
- 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.
- 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.
- Niacinamide active
- Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. It is used at roughly 2 to 5 percent for the look of uneven tone and visible pores, and it is water soluble, stable and comfortable beside almost every other active, which is why it turns up in so many lists.
- Phenyl Trimethicone silicone
- Phenyl Trimethicone is a silicone with a higher refractive index than most, so it adds visible gloss as well as slip. It is common in glow and lip textures.
- Cetyl Ethylhexanoate emollient
- Cetyl Ethylhexanoate is a synthetic ester used as a dry-feeling emollient. It spreads easily, leaves a silky rather than oily finish, and helps disperse pigments and UV filters evenly.
- Cetearyl Alcohol fatty alcohol
- Cetearyl Alcohol is a waxy solid, not the drying kind of alcohol. It is a blend of cetyl and stearyl alcohols used to thicken a cream and keep oil and water from separating, and it softens skin as it does so.
- 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.
- Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer thickener
- This is a pre-neutralised polymer thickener that gels on contact with water and stabilises an emulsion without heat.
- 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.
19 more explained
- 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.
- 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.
- Ecklonia Cava Extract plant extract
- Ecklonia Cava is gamtae, a brown seaweed harvested off Jeju. It carries phlorotannins, an antioxidant group found only in brown algae, and it is used as a marine antioxidant extract.
- Laminaria Japonica Extract plant extract
- Laminaria Japonica is kombu kelp. Its extract carries alginates, minerals and iodine, and it is used as a hydrating, mineral-rich ingredient.
- Caulerpa Lentillifera Extract plant extract
- Extract of sea grape, a green seaweed. It carries mineral-rich polysaccharides and is used as a hydrating marine extract.
- Salicornia Herbacea Extract plant extract
- Glasswort, the hamcho that grows on Korean tidal flats. It concentrates sea minerals as it grows, so its extract is used as a mineral-rich hydrating ingredient.
- 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.
- Macadamia Ternifolia Seed Oil emollient
- Macadamia Seed Oil is unusually high in palmitoleic acid, a fatty acid that human sebum also contains, which is why it absorbs faster than most nut oils. It is a cushioning emollient for dry skin.
- Adenosine active
- Adenosine is a nucleoside that Korea's own cosmetic authority recognises as a wrinkle-care functional ingredient, which is why it appears on so many Korean lists at a low level. It is used for the look of fine lines and is stable and well tolerated.
- Sorbitan Stearate emulsifier
- Sorbitan Stearate is a mild emulsifier and thickener used to hold oil and water together in creams.
- Sorbitan Oleate emulsifier
- Sorbitan Oleate is an emulsifier for water-in-oil formulas. It keeps a rich cream or a cleansing oil from separating.
- Isohexadecane emollient
- Isohexadecane is a branched hydrocarbon emollient that spreads easily and leaves a dry finish. It is often paired with a thickener to build a gel-cream.
- Polysorbate 80 emulsifier
- Polysorbate 80 is an emulsifier and solubiliser used to keep oils, fragrance and oil-soluble actives dissolved in water.
- Glyceryl Stearate SE emulsifier
- Glyceryl Stearate SE is the self-emulsifying grade, supplied with a little soap already built in so it can hold an emulsion with less help. It thickens and softens like the plain form.
- 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.
- 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.
- 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.
- Disodium EDTA chelator
- EDTA is a chelator: it locks up trace metal ions from water and packaging that would otherwise turn a formula cloudy, off-colour or rancid. It does nothing to skin and appears at a fraction of a percent.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809563100385
- Made in
- Republic of Korea
- Volume
- 50ml
- Category
- Moisturizer / Hydrating gel-cream
- Actives
- Adenosine, Allantoin, Niacinamide, Panthenol, Sodium Hyaluronate
- 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 to use
- AM and PM, as the last step of your routine before sunscreen in the morning.
- A pea-sized amount, pressed evenly over the face and neck rather than rubbed in.
- Let it fully absorb, roughly a minute, before the next layer.
- On dry areas or in winter, layer a richer cream on top if this gel-cream alone is not enough.
Worth knowing
- Patch test on a small area first and wait a day before full use, especially the first time.
Reviews
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Purito Seoul Hydro Wave Deep Sea Cream
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A first try of the Dr. Althea serum on camera.
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Purito Seoul, Korean-market original
Purito Seoul's Korean-market cream, sourced for the Korean market.
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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