Master Serum 60ml
mixsoon Master Serum 60ml is a serum led by Bifida Ferment Extract on its own ingredient panel, sourced as the Korean-market formula.
No reviews yet60 ml
$133.33 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- NormalDryCombinationMature
- Helps with
- DehydrationDullnessA concentrated treatment stepUneven texture
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
Bifida Ferment Extract leads the ingredient panel on this serum. An extract of a bifidobacteria culture, the same organism behind bifida ferment lysate. It is used as a conditioning ferment. On this panel it sits alongside Centella Asiatica 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.
Key benefits
- Bifida Ferment Extract named on this product's own ingredient panel, near the top of it
- Centella Asiatica Extract on the same panel, the formula's plant extract
- 60 ml to a unit
- Korean GS1 barcode matched against a Korea sourcing supplier's record for this item
Inside the formula
Inside the formula
What is the mixsoon Master Serum 60ml for?
It is a serum from mixsoon's Korean-market lineup, meant to sit in the routine as a concentrated treatment step. It ships as the same formula sold in Korea rather than a US-shelf reformulation, so the ingredient list on the box matches what Korean shoppers buy.
When should I use this serum in my routine?
AM and PM, after toner and before moisturizer, as the concentrated treatment step. Give it a minute to settle into the skin before layering the next product on top, and keep the same order every time you use it so you can tell what is actually working.
Can I use this alongside other treatment steps?
Yes, it is designed to sit inside a normal routine rather than replace it. Introduce it on its own for the first week so you know how your skin responds, then layer in other treatment steps as usual.
Is this the same formula sold in Korea, or a US version?
This is the Korean-market mixsoon formula, over-labeled in English for US sale rather than reformulated for the US market. The ingredient list on the box is the same one Korean shoppers see on the shelf.
How long does a bottle typically last with regular use?
That depends on how much is used per application and how many steps sit around it in your routine, since a serum used once or twice daily is used differently from one used weekly.
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 (8): Water/Aqua, Butylene Glycol, Centella Asiatica Extract, Bifida Ferment Extract, Glycerin, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Panthenol
Ingredient list read from mixsoon.us on 30 August 2026.
8 of 8 explained
- 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.
- 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.
- 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.
- Bifida Ferment Extract ferment
- An extract of a bifidobacteria culture, the same organism behind bifida ferment lysate. It is used as a conditioning ferment.
- 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.
- 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.
- Hydrolyzed Hyaluronic Acid 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.
- 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.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809732910890
- Made in
- Republic of Korea
- Volume
- 60 ml
- Category
- Serum & Ampoule
- Actives
- Centella Asiatica, Hyaluronic Acid, Panthenol, 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.
How to use
- AM and PM, after toner and before moisturizer, as the concentrated treatment step.
Worth knowing
- New to this formula: patch-test on the inner arm and wait a day before applying it to the face.
- Discontinue use if redness, itching, or irritation develops and rinse the area with water.
Complete the routine
- This itemmixsoon Master Serum 60ml$80.00

- The treatment step of this routinemixsoon Mung Bean Seed Essence 100ml$67.50

- Prep after cleansing, before the treatment stepmixsoon Centella Asiatica Toner 300ml$42.50

Total for 3 items$190.00
Reviews
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mixsoon Master Serum 60ml
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
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mixsoon, Korean-market original
mixsoon's Master Serum, sourced in the same 60ml sold on Korean shelves.
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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