Yuja C Serum 50ml
HANYUL Yuja C Serum is a 50ml serum with Citrus Junos Fruit Extract, used after toner and before moisturizer, morning and evening.
No reviews yet50 ml
$165.00 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- Dehydrated skinSensitive skinDull, uneven tone
- Helps with
- Shoppers looking for Citrus Junos Fruit Extract in a serumRoutines that want Citrus Junos Fruit Extract and Niacinamide in one stepFilling the serum step with a Korean-market formula
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- 30-day returns
- Free US shipping on orders of $100 or more
- Tracked delivery to your door
Key benefits
- Citrus Junos Fruit Extract, the plant extract this serum is built around
- Niacinamide and Adenosine on the same list, actives
- 3-O-Ethyl Ascorbic Acid and Beta-Carotene on the same list, antioxidants
- Tocopherol and Ascorbic Acid further down the same list
- Daucus Carota Sativa (Carrot) Root Extract and Citrus Junos Peel Extract further down the same list
- Citrus Junos Fruit Extract named twenty-first on the manufacturer list printed on this page
Key actives
5Niacinamideactive
Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. The panel names it fifth on this serum's list, beside Citrus Junos Fruit Extract.
20Adenosineactive
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. The panel names it twentieth on this serum's list, beside Citrus Junos Fruit Extract.
21Citrus Junos Fruit Extractplant extract
Yuja fruit extract, the Korean citrus preserved as yuja tea. It carries vitamin C, fruit acids and flavonoids. The name on the box points at it, and it is named twenty-first on this serum's own ingredient list.
243-O-Ethyl Ascorbic Acidantioxidant
3-O-Ethyl Ascorbic Acid is a stable vitamin C derivative that skin converts to ascorbic acid. It survives in a formula far better than pure vitamin C and works at a gentler pH, so it suits skin that finds the pure acid uncomfortable. The panel names it twenty-fourth on this serum's list, beside Citrus Junos Fruit Extract.
26Beta-Caroteneantioxidant
Beta-Carotene is an orange plant pigment and a vitamin A precursor. It is used as an antioxidant and it tints a formula, which is often why it is there. The panel names it twenty-sixth on this serum's list, beside Citrus Junos Fruit Extract.
Inside the formula
Inside the formula
- 5Niacinamide
- 20Adenosine
- 243-O-Ethyl Ascorbic
- 26Beta-Carotene
Where each key active sits on the declared ingredient list, by entry number. Position is proportion: the further forward, the larger its share.
Where does this serum go in my routine?
After toner and before moisturizer, morning and evening. Anything thinner than a serum goes on before it, and anything richer goes on after. If you are adding it to a routine you already like, give it a week on its own first, so what you see is the Citrus Junos Fruit Extract and not three changes at once.
Does this serum contain fragrance?
Yes. The ingredient list names Limonene and Linalool. They sit on the panel printed on this page, so you can read the position for yourself before you buy. If fragrance components are something you avoid, this serum is not the one.
What else is on the list besides Citrus Junos Fruit Extract?
Niacinamide, Adenosine and 3-O-Ethyl Ascorbic Acid. The order they are printed in on this serum's panel is the order on the box, so you can see where Citrus Junos Fruit Extract sits relative to them. Further down the same panel: Beta-Carotene, Tocopherol and Ascorbic Acid.
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 (29): Water, Butylene Glycol, Glycerin, Caprylic/Capric Triglyceride, Niacinamide, 1,2-Hexanediol, Cnidium Officinale Root Water, Angelica Acutiloba Root Water, Behenyl Alcohol, Panthenol, Helianthus Annuus (Sunflower) Seed Oil, Limonene, Citrus Junos Peel Oil (5,000Ppm), Tromethamine, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Daucus Carota Sativa (Carrot) Root Extract, Taurine (1,000Ppm), Ethylhexylglycerin, Adenosine, Citrus Junos Fruit Extract (262Ppm), Disodium EDTA, Linalool, 3-O-Ethyl Ascorbic Acid, Poncirus Trifoliata Fruit Extract, Beta-Carotene, Tocopherol, Ascorbic Acid, Citrus Junos Peel Extract (6Ppm)
Ingredient list read from incidecoder.com on 30 August 2026.
25 of 29 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.
- 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.
- 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.
- 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.
- Behenyl Alcohol fatty alcohol
- Behenyl Alcohol is a long-chain fatty alcohol used to thicken and stabilise a cream. It gives a richer, more velvety body than cetyl alcohol.
- 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.
- 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.
- 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.
- 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.
- 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.
13 more explained
- 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.
- Daucus Carota Sativa (Carrot) Root Extract plant extract
- Carrot Root Extract carries carotenoids, which give it a strong orange colour. It is used as an antioxidant extract and can tint a formula.
- Taurine (1,000Ppm) amino acid
- Taurine is an amino acid that occurs in high concentration inside the body cells, where it helps regulate water balance. In a formula it is a humectant and conditioning agent.
- 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.
- 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.
- Citrus Junos Fruit Extract (262Ppm) plant extract
- Yuja fruit extract, the Korean citrus preserved as yuja tea. It carries vitamin C, fruit acids and flavonoids.
- 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.
- 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.
- 3-O-Ethyl Ascorbic Acid antioxidant
- 3-O-Ethyl Ascorbic Acid is a stable vitamin C derivative that skin converts to ascorbic acid. It survives in a formula far better than pure vitamin C and works at a gentler pH, so it suits skin that finds the pure acid uncomfortable.
- Beta-Carotene antioxidant
- Beta-Carotene is an orange plant pigment and a vitamin A precursor. It is used as an antioxidant and it tints a formula, which is often why it is there.
- 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.
- 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.
- Citrus Junos Peel Extract (6Ppm) plant extract
- Yuja peel extract. The peel is where the citrus flavonoids and aromatic oils concentrate, so it is stronger than the fruit extract.
- Market
- Korean market, the version sold in Korea
- Made in
- Republic of Korea
- Volume
- 50 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 it works
The Yuja C Serum is a 50ml serum, used after toner and before moisturizer, morning and evening. The plant extract it is built around is Citrus Junos Fruit Extract, named twenty-first on its own ingredient list. The same list carries Niacinamide, Adenosine and 3-O-Ethyl Ascorbic Acid, so the plant extract is not the only thing on it worth naming. How much of the Citrus Junos Fruit Extract stays on the skin, and for how long, is decided by the serum format rather than by the list alone. HANYUL sells this Citrus Junos Fruit Extract serum in Korea, and this is that version.
How to use
- Use this serum AM and/or PM, as the serum step, after toner or essence and before moisturizer. Pat or smooth it on rather than rubbing, and give it a moment to settle before layering the next step.
Worth knowing
- Patch test this serum on a small area and wait a day before using it more widely, especially with Citrus Junos Fruit Extract on the list.
- This list names Limonene and Linalool, so skip it if fragrance components are something you avoid.
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HANYUL Yuja C Serum 50ml
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HANYUL, Korean-market original
The Original Korean Formula serum from HANYUL, 50ml formulated with Citrus Junos Fruit Extract and Niacinamide, shipped from California or direct from Korea.
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.
Using topical vitamin C can result in less cell damage and better-looking skin.
Melissa Piliang, MDDermatologist, Cleveland Clinic 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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