By Wishtrend
Mandelic Acid Dark Spot Correcting Serum 30ml
Mandelic Acid Dark Spot Correcting Serum is By Wishtrend's ampoule serum (30ml), built around Niacinamide and Tocopherol. It is used after toner and before moisturizer, as the routine's concentrated treatment step. This is the Original Korean Formula, not a version reworked for US retail.
No reviews yet30 ml
$150.00 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 Mandelic Acid in a serumRoutines that want Mandelic Acid and Niacinamide in one stepFilling the serum step with a Korean-market formulaAnyone who wants the Mandelic Acid 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 Mandelic Acid Dark Spot Correcting Serum is a 30ml serum, used after toner and before moisturizer, morning and evening. The exfoliant it is built around is Mandelic Acid, named fourteenth on its own ingredient list. The same list carries Niacinamide, Adenosine and Bisabolol, so the exfoliant is not the only thing on it worth naming. How much of the Mandelic Acid 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 By Wishtrend sells in Korea, Mandelic Acid and all.
Key benefits
- Mandelic Acid, the exfoliant this serum is built around
- Niacinamide, Adenosine and Bisabolol on the same list, actives
- Tocopherol on the same list, an antioxidant
- Ascorbyl Tetraisopalmitate and Glutathione further down the same list
- Eclipta Prostrata Extract and Coccinia Indica Fruit Extract further down the same list
- Mandelic Acid named fourteenth 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 Mandelic Acid and not three changes at once.
Is this the Korean-market serum or a US version?
The Korean-market one, Mandelic Acid 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 Mandelic Acid?
Niacinamide, Adenosine and Bisabolol. The order they are printed in on this serum's panel is the order on the box, so you can see where Mandelic Acid sits relative to them. Further down the same panel: Tocopherol, Ascorbyl Tetraisopalmitate and Glutathione.
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, Caprylic/Capric Triglyceride, Glycerin, 1,2-Hexanediol, Niacinamide, Castor Oil/IPDI Copolymer, Carbomer, Eclipta Prostrata Extract, Coccinia Indica Fruit Extract, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Xanthan Gum, Tocopherol, Tromethamine, Mandelic Acid, Sodium Phytate, Adenosine, Ascorbyl Tetraisopalmitate, Hyaluronic Acid, Bisabolol, Melia Azadirachta Flower Extract, Ocimum Sanctum Leaf Extract, Melia Azadirachta Leaf Extract, Butylene Glycol, Curcuma Longa (Turmeric) Root Extract, Corallina Officinalis Extract, Glutathione, Ethylhexylglycerin, Hydrogenated Lecithin, Cynanchum Atratum Extract
Ingredient list read from incidecoder.com on 10 September 2026.
28 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.
- 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.
- 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.
- 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.
- 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.
- Castor Oil/IPDI Copolymer film former
- A polymer built from castor oil. It forms a flexible, glossy film, so it is used in lip and long-wear formulas for shine and staying power.
- 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.
- Eclipta Prostrata Extract plant extract
- Eclipta Prostrata is false daisy, long used in Ayurvedic and East Asian practice. Its extract is used as a conditioning plant extract, most often in scalp and hair formulas.
- Coccinia Indica Fruit Extract plant extract
- Coccinia Indica is ivy gourd. Its fruit extract is used as a conditioning, hydrating plant extract in Korean formulas.
- 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.
- 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.
- 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.
16 more explained
- 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.
- Mandelic Acid exfoliant
- Mandelic Acid is an AHA with a molecule roughly twice the size of glycolic, so it penetrates more slowly and evenly. It is the AHA used where a formula has to suit darker or easily reactive skin.
- Sodium Phytate chelator
- Sodium Phytate is a rice-derived chelator used in place of EDTA. It ties up trace metals so the formula stays stable and its colour and scent hold.
- 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.
- Ascorbyl Tetraisopalmitate antioxidant
- Ascorbyl Tetraisopalmitate is an oil-soluble vitamin C ester, also sold as tetrahexyldecyl ascorbate. Being oil soluble it sits in the oil phase and is far more stable than pure vitamin C.
- 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.
- 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.
- Melia Azadirachta Flower Extract plant extract
- Melia Azadirachta is neem. Its leaf and flower extracts are long-standing Ayurvedic ingredients, and Korean formulas use them in products aimed at the look of congested, blemish-prone skin.
- Ocimum Sanctum Leaf Extract plant extract
- Ocimum Sanctum is holy basil, or tulsi. Its leaf extract carries plant antioxidants and is used in formulas built for the look of stressed, reactive skin.
- 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.
- Curcuma Longa (Turmeric) Root Extract plant extract
- Turmeric Root Extract carries curcuminoids, well studied plant antioxidants. It is used for the look of dullness and uneven tone, and it tints a formula faintly yellow.
- Corallina Officinalis Extract plant extract
- Corallina Officinalis is coral seaweed, which holds calcium and magnesium in its structure. Its extract is used as a mineral-rich conditioning ingredient.
- 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.
- 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.
- 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.
- Cynanchum Atratum Extract plant extract
- Cynanchum Atratum is a root used in Korean traditional practice. Its extract is used as a conditioning plant extract in formulas for reactive skin.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809572896415
- Made in
- Republic of Korea
- Volume
- 30 ml
- Category
- Serum & Ampoule
- Actives
- Adenosine, Bisabolol, Glutathione, Hyaluronic Acid, Niacinamide, Vitamin C
- 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 Mandelic Acid on the list.
- Mandelic 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 itemBy Wishtrend Mandelic Acid Dark Spot Correcting Serum 30ml$45.00

- Prep after cleansing, before the treatment stepBy Wishtrend Mandelic Acid Gentle Exfoliating Toner 150ml$42.50

- Seal the routine in as the last stepBy Wishtrend Vitamin 75 Maximizing Cream 50ml$55.00

Total for 3 items$142.50
Reviews
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By Wishtrend Mandelic Acid Dark Spot Correcting Serum 30ml
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
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By Wishtrend, Korean-market original
Mandelic Acid Dark Spot Correcting Serum, 30ml, By Wishtrend's ampoule serum with Niacinamide and Tocopherol.
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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