Cell Fusion C
Post α Cooling Skin Booster Serum 150ml
Post α Cooling Skin Booster Serum is Cell Fusion C's toner (150ml). It is used right after cleansing, to rebalance the skin and prep it for the next step. This is the same formula Korean shoppers buy off the shelf in Seoul, not a version built for US retail.
No reviews yet150 ml
$28.33 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- NormalCombinationOilySensitive
- Helps with
- A post-cleanse toning stepPrepping skin for the next layerA quick rebalancing step
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
Post α Cooling Skin Booster Serum is a toner from Cell Fusion C. Cell Fusion C is a Korean dermo-cosmetic brand developed with a background in post-procedure and sensitive-skin care, with named ranges built around cooling, pH-balancing and brightening. Texture and placement do the work here: a toner is defined by where it sits in a routine and how it feels going on, not by a single named active on this listing. Use it right after cleansing, to rebalance the skin and prep it for the next step; a toner's job is to rebalance the skin's surface so what follows absorbs evenly. Cell Fusion C sells this as the Korean-market formula, the same one stocked on shelves in Korea rather than a version built for the US market.
Key benefits
- Post α Cooling Skin Booster Serum is Cell Fusion C's toner, 150ml, sized for regular use rather than a trial amount
- Cell Fusion C's wider catalog is built the same way: Cell Fusion C is a Korean dermo-cosmetic brand developed with a background in post-procedure and sensitive-skin care, with named ranges built around cooling, pH-balancing and brightening
- Post α Cooling Skin Booster Serum fits right after cleansing, to rebalance the skin and prep it for the next step
- Cell Fusion C's Post α Cooling Skin Booster Serum is sold here as the Korean-market formula: the Original Korean Formula, not a version reworked for US retail
- Post α Cooling Skin Booster Serum keeps the Korean barcode and batch code that print on the unit sold on shelves in Korea
What is Post α Cooling Skin Booster Serum?
It is Cell Fusion C's toner (150ml), part of Cell Fusion C's Korean-market catalog. It is used right after cleansing, to rebalance the skin and prep it for the next step, and it is sold here as the same formula stocked on shelves in Korea.
How do I use Post α Cooling Skin Booster Serum?
Sweep across a cleansed face and neck with a cotton pad or press in with clean hands, then continue with the rest of the routine without rinsing. Keep the same order every time you use it so you can tell what is actually working, and give a new step a few weeks before judging the result.
Is Post α Cooling Skin Booster Serum the authentic Korean-market formula?
Yes. This listing is Cell Fusion C's Korean-market formula: the same ingredient list, barcode and batch code as the unit sold on shelves in Korea, rather than a version reformulated for US retail. That is the whole reason to buy a Korean-market brand from a specialist rather than a general retailer.
What does Cell Fusion C make besides Post α Cooling Skin Booster Serum?
Cell Fusion C is a Korean dermo-cosmetic brand developed with a background in post-procedure and sensitive-skin care, with named ranges built around cooling, pH-balancing and brightening. Toner sits alongside the rest of Cell Fusion C's catalog on our site, all sourced and sold the same way.
Who is Post α Cooling Skin Booster Serum suited for?
It is not restricted to any one skin tone or age group. As with any new step, patch-test on the inner arm first if you are new to this formula or to Cell Fusion C.
- Caffeine
- Green Propolis
- Tannins
- tight-pore active
- Carob Extract
- tight-pore active
Featured ingredients read from cellfusionc.com on 13 September 2026.
- Market
- Korean market, the version sold in Korea
- Made in
- Republic of Korea
- Volume
- 150 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
- Sweep across a cleansed face and neck with a cotton pad or press in with clean hands, then continue with the rest of the routine without rinsing.
Worth knowing
- New to this formula or to the brand: patch-test on the inner arm and wait a day before applying it to the face.
- Discontinue use and rinse the area with water if redness, itching or irritation develops.
Complete the routine
- This itemCell Fusion C Post α Cooling Skin Booster Serum 150ml$42.50
- The last step of the morning, over everything elseCell Fusion C Laser Sunscreen SPF50+/ PA++++ 50ml$30.00
- The treatment step of this routineCell Fusion C Laser Rejuvenation Ampoule 30ml$27.50
Total for 3 items$100.00
Reviews
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Cell Fusion C Post α Cooling Skin Booster Serum 150ml
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
Cell Fusion C, Korean-market original
Post α Cooling Skin Booster Serum, 150ml, Cell Fusion C's toner, sold as the 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
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