Isntree
Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ 50ml
Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ 50ml is Isntree's lightweight, tone adjusting sun care step, formulated for dullness and an uneven-looking tone.
No reviews yet50 ml
$61.00 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- SensitiveDryNormalCombination
- Helps with
- Dullness and an uneven-looking toneRough, flaky or wind-chapped textureDehydration and tight-feeling skinFine lines and loss of bounce
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
How it works
Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ 50ml is Isntree's lightweight, tone adjusting sun care step (50ml). Niacinamide sits in the formula as the brightening and barrier workhorse of the routine, the same B3 vitamin dermo-cosmetic protocols reach for when a complexion looks dull, blotchy or prone to visible redness after cleansing. Panthenol is pro-vitamin B5, included to keep the skin barrier feeling supple and to soften the rough, flaky patches that show up on dry or wind-chapped skin during a Korean skincare routine's colder months. The lightweight, tone adjusting texture sinks in without a greasy residue, leaving skin feeling soft and lightly finished rather than heavy or cast-prone. It sits in a Korean routine as the final morning step, best layered as the final step each morning.
Key benefits
- Niacinamide for brightening, barrier-supporting
- Panthenol for barrier-softening
- Lactobacillus Ferment for fermented hydrator
- Lightweight, tone adjusting texture built for a final morning step
- Authentic Korean-market formula, sourced as the same version sold on Korean retail shelves
Inside the formula
Inside the formula
What is the Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ 50ml?
Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ 50ml is Isntree's lightweight, tone adjusting sun care step (50ml), formulated as final morning step in a Korean skincare routine. It suits sensitive, dry, normal skin types, and it is sourced here as the authentic Korean-market formula rather than a US-shelf reformulation.
Who is this sun care step best suited for?
This sun care step is best suited for sensitive, dry, normal, combination skin, particularly anyone dealing with dullness and an uneven-looking tone. Patch test on the inner arm before a first full-face application if skin tends to react easily.
What are the key ingredients in this sun care step?
The formula lists Niacinamide, Panthenol and Lactobacillus Ferment among its ingredients, alongside the rest of the base that carries them across the skin. Each one is named here in the exact form it appears on Isntree's own ingredient list, not inferred from the product name.
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 (60): Water, Dibutyl Adipate, Propanediol, Butyloctyl Salicylate, Ethylhexyl Triazone, Niacinamide, Drometrizole Trisiloxane, Polyglyceryl-3 Distearate, Terephthalylidene Dicamphor Sulfonic Acid, Polymethylsilsesquioxane, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Tromethamine, Panthenol, 1,2-Hexanediol, Pentylene Glycol, Glyceryl Stearates, Silica, Caprylyl Methicone, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Potassium Cetyl Phosphate, Lactobacillus Ferment, Poly C10-30 Alkyl Acrylate, Methylpropanediol, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Ethylhexylglycerin, Hydrolyzed Sodium Hyaluronate, Xanthan Gum, Adenosine, Polyether-1, Sodium Hyaluronate, Biosaccharide Gum-1, Squalane, Allantoin, Erythritol, Tocopherol, Ectoin, Hydroxypropyltrimonium Hyaluronate, Zinc Hydrolyzed Hyaluronate, Glycerin, Butylene Glycol, Houttuynia Cordata Extract, Citric Acid, Sodium Acetylated Hyaluronate, Hydrolyzed Hyaluronic Acid, Hydrogenated Lecithin, Hyaluronic Acid, Polyglyceryl-10 Stearate, Centella Asiatica Extract, Sodium Hyaluronate Crosspolymer, Sodium Ascorbyl Phosphate, Tocopheryl Acetate, Cocos Nucifera (Coconut) Liquid Endosperm, Potassium Hyaluronate, Retinyl Palmitate, Biotin, Thiamine HCl, Folic Acid, Pyridoxine, Cyanocobalamin
53 of 60 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.
- Dibutyl Adipate emollient
- Dibutyl Adipate is a light ester emollient used as a solvent for UV filters and pigments and to keep a formula from feeling tacky.
- 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.
- Butyloctyl Salicylate emollient
- Butyloctyl Salicylate is an ester used as a solvent and emollient, particularly for dissolving powdered ingredients evenly. Despite the salicylate name it is not an exfoliant.
- 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.
- Polyglyceryl-3 Distearate emulsifier
- Polyglyceryl-3 Distearate is a plant-derived emulsifier used to hold oil and water together in creams and lotions.
- Polymethylsilsesquioxane silicone
- Polymethylsilsesquioxane is a silicone resin in fine sphere form. It soft-focuses the look of pores and lines and gives a smooth, powdery finish.
- Tromethamine pH adjuster
- Tromethamine neutralises acidic thickeners such as carbomer so they gel, and holds a formula near skin-friendly pH. It is used at a fraction of a percent.
- 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.
- 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.
- 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.
- Glyceryl Stearates emulsifier
- Glyceryl Stearate is glycerin joined to stearic acid, and one of the most used emulsifiers in skincare. It holds oil and water together and thickens the result, and it softens skin at the same time.
41 more explained
- Silica absorbent
- Silica is finely milled mineral, essentially very pure sand. It absorbs oil, stops powders clumping and soft-focuses the look of pores and fine lines.
- Caprylyl Methicone silicone
- Caprylyl Methicone is a silicone with a fatty tail, so it mixes with plant oils as well as with silicones. It gives a dry slip and helps disperse powders.
- Potassium Cetyl Phosphate emulsifier
- Potassium Cetyl Phosphate is an emulsifier prized for keeping powdered ingredients evenly suspended, which is why tinted and mineral-powder textures use it.
- Lactobacillus Ferment ferment
- Lactobacillus Ferment is the liquid left after lactobacillus bacteria have fermented a plant or milk substrate. It carries the small molecules the fermentation produced, including lactic acid and amino acids, and is used for the look of dull, uneven skin.
- Poly C10-30 Alkyl Acrylate film former
- Poly C10-30 Alkyl Acrylate is a polymer that forms a soft film, thickens the oil phase and gives a smooth, non-greasy finish.
- 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.
- 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.
- Acrylates/C10-30 Alkyl Acrylate Crosspolymer thickener
- This is a carbomer relative with fatty side chains, so it thickens and stabilises an emulsion at the same time. It gives a light gel-cream body rather than a heavy one.
- 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.
- Hydrolyzed Sodium Hyaluronate 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.
- 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.
- 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.
- Polyether-1 film former
- A synthetic polyether polymer used as a film former and viscosity agent. It leaves a smooth, slightly tacky feel that helps a formula stay put.
- 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.
- Biosaccharide Gum-1 polysaccharide
- Biosaccharide Gum-1 is a fermentation-derived sugar polymer that binds to skin and holds a moisture film in place. It gives a silky, non-tacky feel.
- 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.
- 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.
- Erythritol humectant
- Erythritol is a sugar alcohol humectant with a faint cooling feel as it dissolves. It hydrates and helps a formula spread without tack.
- 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.
- Ectoin humectant
- Ectoin is a small molecule that microbes in salt flats and hot springs make to survive extreme conditions. In skincare it holds water tightly around itself, which is why it appears in formulas aimed at reactive, easily dehydrated 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.
- Zinc Hydrolyzed Hyaluronate humectant
- Short-chain hyaluronic acid paired with zinc, so it delivers both the humectant and the trace mineral.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- Polyglyceryl-10 Stearate emulsifier
- Polyglyceryl-10 Stearate is a mild sugar-derived emulsifier that holds oil into water and thickens slightly.
- 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.
- 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.
- Sodium Ascorbyl Phosphate antioxidant
- Sodium Ascorbyl Phosphate is a water-soluble, stable vitamin C salt. It works at near-neutral pH, so it appears in formulas aimed at skin that pure ascorbic acid leaves stinging.
- Tocopheryl Acetate antioxidant
- Tocopheryl Acetate is a stable vitamin E ester that skin converts to tocopherol. It is used as an antioxidant and a light emollient and holds up better than plain vitamin E in a formula.
- 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.
- Retinyl Palmitate active
- Retinyl Palmitate is retinol bound to a fatty acid. It is the mildest common retinoid because skin has to make three conversions before it becomes active, which also makes it the least likely to cause flaking.
- Biotin vitamin
- Biotin is vitamin B7. In skincare it is a conditioning vitamin, most often in hair and scalp formulas.
- Thiamine HCl vitamin
- Thiamine is vitamin B1, supplied as its hydrochloride salt so it dissolves in water. It is a conditioning vitamin and usually appears as part of a B-complex.
- Folic Acid vitamin
- Folic Acid is vitamin B9. It is used in a formula as a conditioning vitamin, usually as part of a B-complex blend.
- Pyridoxine vitamin
- Pyridoxine is vitamin B6. In a formula it is a conditioning vitamin, most often in B-complex blends and scalp products.
- 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.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809800941832
- Made in
- Republic of Korea
- Volume
- 50 ml
- Category
- Sun Care
- Actives
- Adenosine, Allantoin, Centella Asiatica, Ectoin, Heartleaf (Houttuynia Cordata), Hyaluronic Acid, Niacinamide, Panthenol, Retinol, Sodium Hyaluronate, Squalane
- 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
- The final step of a morning routine, after moisturizer and before makeup.
- Dispense enough to cover the face and neck evenly rather than a thin, spotty layer.
- Smooth in without rubbing hard, and give it a minute to settle before makeup.
Worth knowing
- Patch test on the inner arm before a first full-face application if skin tends to react easily.
- Store away from direct sunlight and high heat to keep the texture and scent stable over time.
- Introduce one new active at a time when adding this into an existing routine.
Complete the routine
- This itemIsntree Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ 50ml$30.50
- The treatment step of this routineIsntree TW-REAL BIFIDA Ampoule 50ml$37.50
- Seal the routine in as the last stepIsntree C-Niacin Toning Cream 50ml$22.50
Total for 3 items$90.50
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Isntree Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ 50ml
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
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Isntree, Korean-market original
Shop Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ 50ml (50ml), the authentic Korean-market sun care step from Isntree formulated with Niacinamide, sourced for the Korean market rather than a US-shelf reformulation.
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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