Purito Seoul
TXA 6% Niacinamide 10% Retinal Serum
Purito Seoul TXA 6% Niacinamide 10% Retinal Serum is a serum led by Niacinamide on its own ingredient panel, sourced as the Korean-market formula.
No reviews yet30ml
$76.63 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
- Layering a concentrated, targeted step into an existing routineShoppers who want Purito Seoul's own Korean-market formula rather than a US-shelf version
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Key benefits
- Niacinamide named on this product's own ingredient panel, near the top of it
- Tranexamic Acid on the same panel, the formula's active
- Hydroxydecyl Ubiquinone on the same panel, the formula's antioxidant
- 30 ml to a unit
- Korean GS1 barcode matched against a Korea sourcing supplier's record for this item
Key actives
2Niacinamide
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.
3Tranexamic Acid
Tranexamic Acid is a synthetic amino acid derivative used for the look of stubborn discolouration and post-blemish marks. It is water soluble, stable and comfortable next to niacinamide, which is how it is usually paired.
18Hydroxydecyl Ubiquinone
Hydroxydecyl Ubiquinone is idebenone, a synthetic relative of coenzyme Q10 made to be more stable and more soluble than the natural molecule.
19Adenosine
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.
Inside the formula
Inside the formula
- 2Niacinamide
- 18Hydroxydecyl Ubiquinone
Where each key active sits on the declared ingredient list, by entry number. Position is proportion: the further forward, the larger its share.
Purito Seoul TXA 6% Niacinamide 10% Retinal Serum
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 high on the ingredient list, among the formula's main working ingredients.
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 serum or ampoule go in a routine?
Apply a small amount to cleansed, toned skin, pat in gently, then follow with a moisturizer.
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, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (39): Water, Niacinamide(10%), Tranexamic Acid(6%), Glycerin, Caprylic/Capric Triglyceride, 1,2-Hexanediol, Methylpropanediol, Pentylene Glycol, PVP, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Butylene Glycol, Agar, Gellan Gum, Ethylhexylglycerin, Sodium Citrate, Hydroxyacetophenone, Citric Acid, Hydroxydecyl Ubiquinone, Adenosine, Lactococcus Ferment Lysate, Hydrogenated Lecithin, Centella Asiatica Extract, Ficus Carica (Fig) Fruit Extract, Fructooligosaccharides, Cyanocobalamin, Xanthan Gum, Retinal(25 Ppm), Ceramide NP, Arginine, Tocopherol, Glutathione, Bisabolol, Helianthus Annuus (Sunflower) Seed Oil, Allantoin, Xanthophylls, Sodium Chloride, Phenylpropanol, Levulinic Acid, Sodium Levulinate
Ingredient list read from sentisenti.com on 2 October 2026.
39 of 39 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.
- Niacinamide(10%) 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.
- Tranexamic Acid(6%) active
- Tranexamic Acid is a synthetic amino acid derivative used for the look of stubborn discolouration and post-blemish marks. It is water soluble, stable and comfortable next to niacinamide, which is how it is usually paired.
- 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.
- 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.
- 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.
- Methylpropanediol humectant
- Methylpropanediol is a small glycol used to hydrate and to help water-soluble actives penetrate the outer layer of skin more evenly. It leaves almost no tack, which suits watery textures.
- 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.
- PVP film former
- PVP is polyvinylpyrrolidone, a water-soluble polymer that dries into a clear flexible film. It holds pigment or hair in place and washes off with water.
- Ammonium Acryloyldimethyltaurate/Vp Copolymer thickener
- This is a synthetic thickener that gels quickly and holds an emulsion stable across a wide pH range. It gives a light, non-tacky body.
- 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.
- Agar thickener
- Agar is a seaweed polysaccharide that sets into a firm gel. It is the gelling agent behind jelly masks and thick sleeping packs.
27 more explained
- Gellan Gum thickener
- Gellan Gum is a fermentation-derived polysaccharide that sets a clear, brittle gel at very low levels. It is used to suspend particles without thickening the liquid much.
- 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.
- Sodium Citrate pH adjuster
- Sodium Citrate is the salt of citric acid, used as a buffer: it holds a formula at a steady pH rather than pushing it in one direction. It is also a mild chelator.
- Hydroxyacetophenone preservative booster
- Hydroxyacetophenone is an antioxidant that also strengthens a preservative system, so a formula needs less traditional preservative. Korean formulas pair it with 1,2-hexanediol constantly.
- Citric Acid pH adjuster
- Citric Acid is used in tiny amounts to bring a formula to the pH its actives need, not as an exfoliant at that level. It is an AHA, so at much higher concentrations it can also exfoliate.
- Hydroxydecyl Ubiquinone antioxidant
- Hydroxydecyl Ubiquinone is idebenone, a synthetic relative of coenzyme Q10 made to be more stable and more soluble than the natural molecule.
- 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.
- Lactococcus Ferment Lysate ferment
- Lactococcus Ferment Lysate is a lactic-culture ferment with the bacterial cells broken open, so their contents are in the formula too. It is used as a conditioning ferment in barrier-focused products.
- 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.
- 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.
- Ficus Carica (Fig) Fruit Extract plant extract
- Fig Fruit Extract carries fruit sugars, mild acids and a protein-digesting enzyme. It is used as a hydrating extract with a light smoothing effect.
- Fructooligosaccharides humectant
- Fructooligosaccharides are short fructose chains used as humectants and as food for the skin's own resident microbes.
- Cyanocobalamin vitamin
- Cyanocobalamin is vitamin B12, and it is a deep pink-red, which is why a formula carrying it often has a colour nobody added on purpose. It is used as a conditioning vitamin.
- Xanthan Gum thickener
- Xanthan Gum is a polysaccharide made by fermenting sugar. It thickens a watery formula into a gel and holds the whole thing in suspension so nothing separates. Too much of it and a serum turns stringy, which is why it appears in fractions of a percent.
- Retinal(25 Ppm) active
- Retinal is retinaldehyde, a vitamin A derivative one chemical step closer to retinoic acid than retinol is. It is yellow-orange and unstable in light, so products carrying it are usually opaque.
- 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.
- 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.
- Tocopherol antioxidant
- Tocopherol is vitamin E. It is an oil-soluble antioxidant that protects the oils in a formula from going rancid and works on skin as an emollient, and it is regularly paired with vitamin C because each keeps the other going for longer.
- Glutathione antioxidant
- Glutathione is a small peptide the body uses as one of its main antioxidants. In skincare it is used as an antioxidant and for the look of dullness; it is unstable in water, so formulas that carry it are usually built around protecting it.
- Bisabolol active
- Bisabolol is the main active fraction of chamomile oil, usually supplied from candeia wood. It is used for the look of redness in formulas for reactive skin, and it helps other ingredients absorb.
- Helianthus Annuus (Sunflower) Seed Oil emollient
- Sunflower Seed Oil is high in linoleic acid, the fatty acid dry and blemish-prone skin is often short of. It is a light, non-fragrant emollient and one of the better tolerated plant oils.
- 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.
- Xanthophylls antioxidant
- Xanthophyll is the yellow carotenoid family lutein belongs to, found in marigold and leafy greens. It is used as a plant antioxidant and tints a formula yellow.
- Sodium Chloride thickener
- Sodium Chloride is salt. In a cleanser it thickens the liquid; in a mask or essence it balances the mineral content of the water phase. It has no active role.
- Phenylpropanol solvent
- Phenylpropanol is an aromatic alcohol with a faint hyacinth smell. It works as a solvent and strengthens a preservative system, so it appears in formulas built without parabens.
- Levulinic Acid preservative
- Levulinic Acid is a plant-derived acid used with its sodium salt as a natural preservative system. It also adjusts pH.
- Sodium Levulinate preservative
- The sodium salt of levulinic acid, and the other half of a plant-derived preservative pair. It is used in formulas built without traditional preservatives.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809563103973
- Made in
- Republic of Korea
- Volume
- 30ml
- Category
- Serum & Ampoule / Brightening/tone-evening serum
- Actives
- Adenosine, Allantoin, Bisabolol, Centella Asiatica, Ceramide NP, Glutathione, Niacinamide, Tranexamic Acid
- 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
Niacinamide leads the ingredient panel on this serum. 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. On this panel it sits alongside Tranexamic Acid, Hydroxydecyl Ubiquinone and Adenosine. Tranexamic Acid is a synthetic amino acid derivative used for the look of stubborn discolouration and post-blemish marks. It is water soluble, stable and comfortable next to niacinamide, which is how it is usually paired.
How to use
- Use it at night and only at night, after toner, on a face that is completely dry.
- Two or three drops for the whole face, kept off the eyelids and the corners of the mouth.
- A moisturizer goes over it every time, and sunscreen goes on the next morning without exception.
- Do not use it with an acid, a scrub or a second retinoid.
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 TXA 6% Niacinamide 10% Retinal Serum
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Purito Seoul, Korean-market original
Purito Seoul's Korean-market serum or ampoule, 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 the key actives in this formula, quoted from the medical sources linked beside each.
Topical tranexamic acid 5% cream is under investigation in the treatment of melasma and is showing promising results in the treatment of epidermal-type melasma.
Faisal R AliConsultant Dermatologist, DermNet NZ Antioxidants are basically shields you can apply to your skin to combat all the things that contribute to aging skin such as UV radiation, Infrared radiation, and ozone pollution.
Lisa Pruett, MD, FAADBoard-certified dermatologist, Byrdie
1 more professional perspective
Niacinamide helps reduce the appearance of pores in a few ways. By strengthening the skin barrier and improving elasticity, pores appear less noticeable and more even.
Ashlyn YankeAesthetician, Cleveland Clinic
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