COSNORI Panthenol Barrier Ampoule 30ml
Panthenol Barrier Ampoule, from COSNORI, is an ampoule. It suits normal, combination and dry skin. Comes in a 30ml size.
No reviews yet- Ships from our California warehouse
- Duties prepaid
- Suited to
- NormalCombinationDry
- Helps with
- A concentrated, short-course treatment stepLayering under a regular moisturizer
In stock. Ships from our California warehouse, dispatched within 2 business days
You’re $100.00 away from free US shipping.
- Duties prepaid
- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
Key benefits
- Panthenol, the humectant this ampoule is built around
- Niacinamide and Adenosine on the same list, actives
- Beta-Glucan on the same list, a polysaccharide
- Terminalia Ferdinandiana Fruit Extract on the same list, a plant extract
- Laminaria Japonica Extract and Eclipta Prostrata Extract further down the same list
- Raffinose and Sodium Hyaluronate further down the same list
Key actives
Panthenolhumectant
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. The name on the box points at it, and it is named third on this ampoule's own ingredient list.
Niacinamideactive
Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. It is named seventh on this ampoule's list, alongside Panthenol.
Adenosineactive
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. The panel names it seventeenth on this ampoule's list, beside Panthenol.
Beta-Glucanpolysaccharide
Beta-Glucan is a polysaccharide from oats or yeast. It holds a large amount of water, forms a soothing film, and is one of the ingredients formulators reach for in products aimed at reactive skin. It is named twenty-first on this ampoule's list, alongside Panthenol.
Terminalia Ferdinandiana Fruit Extractplant extract
Kakadu plum fruit extract, the highest natural source of vitamin C known. It is used as a plant antioxidant. It is named first on this ampoule's list, alongside Panthenol.
How to use
- Apply a few drops to clean skin after toner, morning or night as directed on the pack, and follow with moisturizer to seal it in. Ampoules are typically used as a concentrated course rather than an everyday staple.
Where does this ampoule go in my routine?
After toner and before moisturizer, morning and evening. Anything thinner than an ampoule 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 Panthenol and not three changes at once.
What else is on the list besides Panthenol?
Niacinamide, Adenosine and Beta-Glucan. The order they are printed in on this ampoule's panel is the order on the box, so you can see where Panthenol sits relative to them. Further down the same panel: Terminalia Ferdinandiana Fruit Extract, Laminaria Japonica Extract and Eclipta Prostrata Extract.
- 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.
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 it works
The Panthenol Barrier Ampoule is a 30ml ampoule, used after toner and before moisturizer, morning and evening. The humectant it is built around is Panthenol, named third on its own ingredient list. The same list carries Niacinamide, Adenosine and Beta-Glucan, so the humectant is not the only thing on it worth naming. How much of the Panthenol stays on the skin, and for how long, is decided by the ampoule format rather than by the list alone. COSNORI sells this Panthenol ampoule in Korea, and this is that version.
Worth knowing
- Introduce gradually and patch test first, since ampoules are formulated at a higher concentration than a standard serum.
Reviews
No reviews yet. Tell us how much you love the product!
Write Reviews (opens in a new tab)We’re on gram!
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
Korean-market original
COSNORI's Panthenol Barrier Ampoule is built around Panthenol, in the 30ml bottle it ships in 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.
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 the key actives in this formula, quoted from the medical sources linked beside each.
Pantothenol is a common ingredient in skin care and hair products I recommend, particularly for people who are prone to dryness.
Taylor Bullock, MDDermatology resident, Cleveland Clinic It can be especially useful for skin that is easily irritated or prone to redness, including conditions such as rosacea, eczema and contact dermatitis.
Derrick Phillips, MDConsultant dermatologist, Vogue
1 more professional perspective
Niacinamide helps reduce the appearance of pores in a few ways. By strengthening the skin barrier and improving elasticity, pores appear less noticeable and more even.
Ashlyn YankeAesthetician, Cleveland Clinic
Ask an AI assistant about this product
Ask an AI assistant about this product
Opens ChatGPT, Perplexity or Claude in a new tab with the question prefilled. Claude asks you to sign in first.








