APRILSKIN
Calendula PHA + AHA Resurfacing Serum 30ml
APRILSKIN Calendula PHA + AHA Resurfacing Serum is a 30ml serum whose ingredient list carries Gluconolactone alongside Allantoin and Adenosine.
No reviews yet30 ml
$166.67 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- Congested skinUneven textureDehydrated skinSensitive skin
- Helps with
- Shoppers looking for Gluconolactone in a serumRoutines that want Gluconolactone and Allantoin in one stepFilling the serum step with a Korean-market formulaAnyone who wants the Gluconolactone serum sold on Korean shelves
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
The Calendula PHA + AHA Resurfacing Serum is a 30ml serum, used after toner and before moisturizer, morning and evening. The exfoliant it is built around is Gluconolactone, named second on its own ingredient list. The same list carries Allantoin, Adenosine and Salicylic Acid, so the exfoliant is not the only thing on it worth naming. How much of the Gluconolactone stays on the skin, and for how long, is decided by the serum format rather than by the list alone. This is the Original Korean Formula, the serum APRILSKIN sells in Korea, Gluconolactone and all.
Key benefits
- Gluconolactone, the exfoliant this serum is built around
- Allantoin and Adenosine on the same list, actives
- Salicylic Acid and Lactic Acid on the same list, exfoliants
- Glycolic Acid and Calendula Officinalis Flower Extract further down the same list
- Indigofera Tinctoria Extract and Citrus Nobilis (Mandarin Orange) Peel Extract further down the same list
- Gluconolactone named second on the manufacturer list printed on this page
How to use
- Apply after toner and before moisturizer. Pat or smooth it over a cleansed face and let it absorb before the next step, AM and PM.
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 Gluconolactone and not three changes at once.
Is this the Korean-market serum or a US version?
The Korean-market one, Gluconolactone and all. We match this serum to its Korean barcode before it reaches the shelf, which is the check that tells you which market release you are holding.
What else is on the list besides Gluconolactone?
Allantoin, Adenosine and Salicylic Acid. The order they are printed in on this serum's panel is the order on the box, so you can see where Gluconolactone sits relative to them. Further down the same panel: Lactic Acid, Glycolic Acid and Calendula Officinalis Flower Extract.
Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (39): Calendula Officinalis Flower Extract, Gluconolactone, Methylpropanediol, Glycerin, Water (Aqua), Propanediol, 1,2-Hexanediol, Polyglycerin-3, Tromethamine, Dimethicone, Butylene Glycol, C12-14 Pareth-12, Panthenol, Hydroxyethylcellulose, Lecithin, Sodium Polyacryloyldimethyl Taurate, Ammonium Acryloyldimethyltaurate/VP Copolymer, Salicylic Acid, Allantoin, Lactic Acid, Glycolic Acid, Ethylhexylglycerin, Adenosine, Indigofera Tinctoria Extract, Sodium Hyaluronate, Citrus Nobilis (Mandarin Orange) Peel Extract, Cupressus Sempervirens Leaf/Stem Extract, Citrus Aurantium Bergamia (Bergamot) Fruit Oil, Hedera Helix (Ivy) Leaf/Stem Extract, Hyaluronic Acid, Litsea Cubeba Fruit Oil, Ribes Nigrum (Black Currant) Leaf Extract, Hemerocallis Fulva Flower Extract, Sodium Hyaluronate Crosspolymer, Hydrolyzed Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Myosotis Sylvatica Flower/Leaf/Stem Extract, Sodium Acetylated Hyaluronate, Hydroxypropyltrimonium Hyaluronate
Ingredient list read from inkeedecoder.com on 10 September 2026.
38 of 39 explained
- Calendula Officinalis Flower Extract plant extract
- Marigold flower extract, one of the oldest plant ingredients used for the look of reddened, easily bothered skin. It carries carotenoids and flavonoids.
- Gluconolactone exfoliant
- Gluconolactone is a PHA, the gentlest exfoliant class. Its molecule is too large to penetrate quickly, so it smooths the surface without the sting of an AHA, and it is a humectant at the same time.
- 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.
- 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 (Aqua) 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.
- 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.
- 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.
- Polyglycerin-3 humectant
- Polyglycerin-3 is a short chain of glycerin units used as a gentler, less sticky humectant. It also helps oils and water stay blended.
- 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.
- 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.
- 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.
- C12-14 Pareth-12 emulsifier
- C12-14 Pareth-12 is a solubiliser that keeps oils and fragrance in solution so a clear formula stays clear.
26 more explained
- 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.
- Hydroxyethylcellulose thickener
- Hydroxyethylcellulose is a cellulose thickener that builds a clear, smooth gel and holds the rest of the formula in suspension.
- Lecithin emulsifier
- Lecithin is a soy or sunflower-derived phospholipid, the same class of molecule cell membranes are built from. It emulsifies oil into water and is the basis of the liposomes formulators use to carry actives.
- Sodium Polyacryloyldimethyl Taurate thickener
- Sodium Polyacryloyldimethyl Taurate is a polymer thickener that holds a gel stable even with a lot of salt or acid in the formula.
- 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.
- Salicylic Acid exfoliant
- Salicylic Acid is a BHA, and the only common exfoliant that is oil soluble, so it can work inside a pore rather than only on the surface. It loosens the dead cells that block pores and is used for the look of congested, oily skin.
- 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.
- Lactic Acid exfoliant
- Lactic Acid is a larger AHA than glycolic, so it works nearer the surface and is easier on skin, and it is a humectant as well as an exfoliant. It is the AHA of choice for dry skin.
- Glycolic Acid exfoliant
- Glycolic Acid is the smallest AHA, which is why it is also the most penetrating and the most likely to sting. It loosens the bonds between dead surface cells and is used for the look of dullness and rough texture.
- 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.
- Indigofera Tinctoria Extract plant extract
- True indigo extract, the plant natural indigo dye is made from. In a formula it both colours and conditions.
- 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.
- Citrus Nobilis (Mandarin Orange) Peel Extract plant extract
- Mandarin peel extract, carrying citrus flavonoids and aromatic compounds. It is used as a conditioning antioxidant extract.
- Cupressus Sempervirens Leaf/Stem Extract plant extract
- Italian cypress leaf and stem extract. The plant carries tannins and aromatic terpenes, so the extract has an astringent, resinous character.
- Citrus Aurantium Bergamia (Bergamot) Fruit Oil fragrance component
- Bergamot Fruit Oil is a citrus essential oil and the top note of eau de cologne. It scents a formula; citrus oils are the aromatic class most likely to bother reactive skin.
- Hedera Helix (Ivy) Leaf/Stem Extract plant extract
- Ivy Leaf and Stem Extract carries saponins, plant compounds that foam slightly in water. It is used in body and eye formulas for the look of puffiness.
- 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.
- Litsea Cubeba Fruit Oil fragrance
- May chang oil, a bright lemon-scented essential oil pressed from a small Asian tree. Its scent comes mostly from citral, the same aromatic that gives lemongrass its character.
- Ribes Nigrum (Black Currant) Leaf Extract plant extract
- Blackcurrant leaf extract, carrying flavonoids and tannins. It is used as a conditioning antioxidant extract.
- Hemerocallis Fulva Flower Extract plant extract
- Orange daylily flower extract, from an edible flower in Korean cooking. It is used as a conditioning floral extract.
- 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.
- 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.
- Myosotis Sylvatica Flower/Leaf/Stem Extract plant extract
- Forget-me-not extract, taken from the whole plant above ground. It is used as a gentle conditioning botanical.
- 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.
- 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.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8806194101798
- Made in
- Republic of Korea
- Volume
- 30 ml
- Category
- Serum & Ampoule
- Actives
- Adenosine, Allantoin, Glycolic Acid, Hyaluronic Acid, Lactic Acid, Panthenol, Salicylic Acid, 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.
Inside the formula
Inside the formula
Worth knowing
- Patch test this serum on a small area and wait a day before using it more widely, especially with Gluconolactone on the list.
- Gluconolactone and Glycolic Acid on this list makes this serum an exfoliating step, so do not stack it with another one on the same night.
Complete the routine
- This itemAPRILSKIN Calendula PHA + AHA Resurfacing Serum 30ml$50.00
- Cleanse first, so the next step meets bare skinAPRILSKIN Pink Aloe Mask-to-Foam Soothing Cleanser 120g$52.50
- Prep after cleansing, before the treatment stepAPRILSKIN Calendula PHA Hyaluronic Toner Pads 140g$45.00
Total for 3 items$147.50
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APRILSKIN Calendula PHA + AHA Resurfacing Serum 30ml
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APRILSKIN, Korean-market original
The Original Korean Formula serum from APRILSKIN, 30ml formulated with Gluconolactone and Allantoin, 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 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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