Dr. Althea
Multi-Action Infusion Serum
A serum from Dr. Althea's Korean-market lineup, built around Niacinamide and Centella Asiatica Extract, 30ml to a unit.
No reviews yet30ml
- Korean-market formula
- Ships from our California warehouse
- Duties prepaid
- Suited to
- NormalCombinationDry
- Helps with
- A targeted treatment step between toner and moisturizerA concentrated step layered under a moisturizerDaily use as the treatment step of a routine
Sold out.
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One email, the moment this exact unit is back in stock. Not a newsletter and not a sequence, and your address comes off the list the second it is sent.
Next step in this routine
- Cleanse
- Prep
- Treat
- Sealnext
- Morning finish
Medicube PDRN Pink Collagen Capsule CreamSeal the routine in as the last step
$19.99
Also standing in Seal: Dr. Althea 345 Relief Cream, $23.52.
- Duties prepaid
- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
How it works
The Multi-Action Infusion Serum is a 30ml serum, used after toner and before moisturizer, morning and evening. The active it is built around is Niacinamide, named fifth on its own ingredient list. The same list carries Adenosine, Centella Asiatica Extract and Melia Azadirachta Leaf Extract, so the active is not the only thing on it worth naming. How much of the Niacinamide 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 Dr.Althea sells in Korea, Niacinamide and all.
Key benefits
- Niacinamide, the active this serum is built around
- Adenosine on the same list, an active
- Centella Asiatica Extract and Melia Azadirachta Leaf Extract on the same list, plant extracts
- Arginine on the same list, an amino acid
- Sodium Hyaluronate and Hydrolyzed Hyaluronic Acid further down the same list
- Hyaluronic Acid further down the same list
Dr. Althea Multi-Action Infusion Serum
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 Niacinamide and not three changes at once.
Is this the Korean-market serum or a US version?
The Korean-market one, Niacinamide 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.
Does this serum contain fragrance?
Yes. The ingredient list names Fragrance. It sits 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 Niacinamide?
Adenosine, Centella Asiatica Extract and Melia Azadirachta Leaf Extract. The order they are printed in on this serum's panel is the order on the box, so you can see where Niacinamide sits relative to them. Further down the same panel: Arginine, Sodium Hyaluronate and Hydrolyzed Hyaluronic Acid.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809447254203
- Made in
- Republic of Korea
- Volume
- 30ml
- Category
- Serum & Ampoule / Hydrating multi-benefit serum
- Actives
- Adenosine, Centella Asiatica, Hyaluronic Acid, Niacinamide, Sodium Hyaluronate
- Ships from
- California
Duties are prepaid. Nothing is owed at delivery. Returns are accepted for 30 days, by mail.
Orders ship from our California warehouse, dispatched within 2 business days, and arrive in 3 to 5 days. Shipping is free on orders of $100 or more.
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 - 2Customs
Duty paid by us before it enters the US - 3California
Ships domestically, no international leg
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.
Import duties are paid by us before the parcel reaches you, so nothing is owed at the door, 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.
Payment and security
We accept
How to use
- Use the Multi-Action Infusion Serum after your toner and before your moisturizer, morning and evening.
- Two or three drops for the whole face, pressed in with the flats of your fingers while skin is still damp.
- Follow with a moisturizer within a minute or two, because a thin serum left bare dries down and takes surface water with it.
- Twice a day, every day. Do not stack a second serum on top of it in the same layer; the point of this format is that one layer covers the step.
Worth knowing
- Patch test on the inner arm first, as with any new step added to a routine.
- Discontinue if irritation develops and check the ingredient list against any known sensitivity.
Reviews
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Creators trying on authentic Korean skincare routines and products from us.
Rating a shelf of Dr. Althea products one by one.
Jasmine Loo · YouTube
Two hydrating serums side by side, IUNIK and Dr. Althea.
Kristin · YouTube
A walk through the Dr. Althea serum lineup and who each one suits.
auraofmahmuda · YouTube
A blunt first take on the Dr. Althea range.
Lexi Chang · YouTube
A first look at the viral 345 Relief Cream before buying.
Shelley Nayak · YouTube
A first try of the Dr. Althea serum on camera.
Hannah Ziad · YouTube
Dr. Althea, Korean-market original
The Original Korean Formula serum from Dr.Althea, 30ml formulated with Niacinamide and Adenosine, held in the United States and shipped domestically.
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.
Match the batch code on the box against the code printed on the bottle or tube itself; the two are stamped separately and should agree.
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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