Laneige
Radian-C Vitamin Spot Ampoule 10ml
Radian-C Vitamin Spot Ampoule 10ml is Laneige's ampoule, sold here as the authentic Korean-market formula, the version stocked on shelves in Korea.
No reviews yet10 ml
$40.00 per 10 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- NormalDryCombinationOily
- Helps with
- Dullness and uneven toneA brightening stepLayering into a multi-step Korean routine rather than being used as a stand-alone product
Sold out.
Tell us where to send it
One email, the moment this exact unit is back in stock. Not a newsletter and not a sequence, and your address comes off the list the second it is sent.
- 30-day returns
- Free US shipping on orders of $100 or more
- Tracked delivery to your door
How it works
Radian-C Vitamin Spot Ampoule 10ml is Laneige's ampoule. Like most entries in this format, its job in a routine comes from texture and placement rather than one named active carrying the result on its own. Used after toner and before moisturizer, as the routine's concentrated step, it is built to address dullness and uneven tone. We stock Laneige's Korean-market formula, the same version sold on shelves in Seoul rather than a formula built for US retail, with the Korean barcode and batch code intact on the box.
Key benefits
- Laneige's ampoule, sourced as the Korean-market formula rather than a US-shelf reformulation.
- Built as an ampoule, where texture and placement in a routine carry the result.
- Fits after toner and before moisturizer, as the routine's concentrated step in a layered Korean routine.
- Aimed at dullness and uneven tone.
Inside the formula
Inside the formula
What is Radian-C Vitamin Spot Ampoule 10ml?
It is Laneige's ampoule. We stock Laneige's Korean-market formula, the version sold on shelves in Korea rather than a US-shelf reformulation.
How do I use Radian-C Vitamin Spot Ampoule 10ml?
Dispense a few drops of Radian-C Vitamin Spot Ampoule 10ml onto cleansed skin, press it in with your palms, then follow with moisturizer. Used consistently after toner and before moisturizer, as the routine's concentrated step, give it a few weeks in that slot before judging whether it is working for you.
Who is Radian-C Vitamin Spot Ampoule 10ml suited for?
It suits normal, dry, combination, aimed at dullness and uneven tone. Patch test on a small area first if you are new to this formula or to the brand. Give the formula a few uses in that slot in your routine before deciding whether it fits your needs.
Is Radian-C Vitamin Spot Ampoule 10ml the authentic Korean formula?
Yes. We stock Laneige's Korean-market formula rather than a version reformulated for US shelves. The unit sold is the one listed on Korean shelves, with the Korean barcode and batch code intact on the box.
How should I store Radian-C Vitamin Spot Ampoule 10ml?
Keep Radian-C Vitamin Spot Ampoule 10ml away from direct sunlight and heat, and close the cap fully between uses so the formula stays stable for its full shelf life. A cool, dry spot out of a steamy bathroom is a better home for it than a windowsill or a shower shelf.
Not on the ingredient list below: denatured or SD alcohol, essential oils, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (35): Water, Ascorbic Acid, Propanediol, Dimethicone, Dipropylene Glycol, Tromethamine, Ethyl Ascorbyl Ether, Squalane, Panthenol, Sodium Chloride, Acetyl Glucosamine, Limonene, Caffeine, Sodium Hyaluronate, Sodium Sulfite, Disodium Edta, Glutathione, Fragrance, Gardenia Florida Fruit Extract, Linalool, Dextrin, Citral, Butylene Glycol, Arginine, Xanthan Gum, Niacinamide, Pentylene Glycol, Tranexamic Acid, Glycyrrhiza Glabra (licorice) Root Extract, Tocopherol, Methyl Trimethicone, Carthamus Tinctorius (safflower) Seed Oil, 1,2-Hexanediol, Ethylhexylglycerin, Centella Asiatica Flower/Leaf/Stem Extract
Ingredient list read from laneige.com on 30 August 2026.
34 of 35 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.
- Ascorbic Acid antioxidant
- Ascorbic Acid is pure vitamin C, the most researched form and also the least stable: it needs a low pH and airtight packaging to stay active. It is an antioxidant used for the look of dullness and uneven tone.
- 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.
- Dimethicone silicone
- Dimethicone is the most used cosmetic silicone. It forms a breathable film that smooths the surface, slows water leaving skin, and gives the slip that makes a primer or cream feel silky. It is inert and does not penetrate.
- 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.
- 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.
- Ethyl Ascorbyl Ether vitamin
- A vitamin C derivative with an ethyl group on the third position, the same molecule usually written 3-O-Ethyl Ascorbic Acid. The ether makes it far more stable in water than pure ascorbic acid.
- 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.
- 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.
- 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.
- Acetyl Glucosamine active
- Acetyl Glucosamine is the sugar unit hyaluronic acid is built from. It is used as a humectant and, at higher levels, for the look of uneven tone, often paired with niacinamide.
- Limonene fragrance component
- Limonene is the citrus-peel aromatic. It appears here because EU labelling requires 26 fragrance components to be named individually rather than hidden inside "fragrance", and it is one of them.
22 more explained
- Caffeine active
- Caffeine constricts small blood vessels near the surface, which is why eye products use it for the look of puffiness and shadow. It is water soluble and works only while it is on the skin.
- 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.
- Sodium Sulfite antioxidant
- A reducing agent used to stop vitamin C and other easily oxidised ingredients from browning in the bottle.
- 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.
- 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.
- Fragrance fragrance
- Fragrance, or Parfum, is a single declaration standing for a whole scent blend, which can be dozens of materials. Regulators allow it as a trade secret, so a list showing only this word does not say what the scent is made of. It is the most common trigger named by people with reactive skin.
- 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.
- Linalool fragrance component
- Linalool is a floral aromatic found in lavender, bergamot and coriander. It is one of the 26 fragrance components EU labelling requires to be declared by name.
- 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.
- Citral fragrance component
- Citral is a sharp lemon aromatic found in lemongrass and citrus oils. It is one of the 26 fragrance components EU labelling requires to be named.
- 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.
- 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.
- 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.
- 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.
- 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.
- Tranexamic Acid 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.
- Glycyrrhiza Glabra (licorice) Root Extract plant extract
- Licorice Root Extract carries glabridin and liquiritin. It is one of the classic plant ingredients used for the look of uneven tone and redness, and it appears in almost every brightening formula that avoids synthetic actives.
- 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.
- Methyl Trimethicone silicone
- Methyl Trimethicone is a light, volatile silicone chosen for a notably dry finish. It thins a formula and disperses powders evenly.
- Carthamus Tinctorius (safflower) Seed Oil emollient
- Safflower seed oil, among the highest-linoleic plant oils. High-linoleic oils feel lighter and absorb faster than high-oleic ones.
- 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.
- 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.
- Market
- Korean market, the version sold in Korea
- Made in
- Republic of Korea
- Volume
- 10 ml
- Category
- Serum & Ampoule
- 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.
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
- Dispense a few drops of Radian-C Vitamin Spot Ampoule 10ml onto cleansed skin, press it in with your palms, then follow with moisturizer.
Worth knowing
- Store away from direct sunlight and heat to keep the formula stable over its shelf life.
- Patch test on a small area first if you are new to this formula or to the brand.
Reviews
No reviews yet. Tell us how much you love the product!
Write a reviewWrite a review
LANEIGE Radian-C Vitamin Spot Ampoule 10ml
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
Laneige, Korean-market original
Radian-C Vitamin Spot Ampoule 10ml, Laneige's ampoule, Korean-market 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
Ask an AI assistant about this product
Ask an AI assistant about this product
Opens ChatGPT, Perplexity or Claude in a new tab with the question prefilled. Claude asks you to sign in first.

