Bonajour Derma MDK Repair Ampoule 13g
Bonajour's Derma MDK Repair Ampoule (13g) concentrates Centella Asiatica Extract, Niacinamide, and Asiaticoside into a small-format serum meant for a compromised, post-procedure or post-irritation barrier rather than everyday hydration maintenance.
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- 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
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- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
How it works
The Derma MDK Repair Ampoule is a 13g ampoule, used after toner and before moisturizer, morning and evening. The active it is built around is Niacinamide, named fourth on its own ingredient list. The same list carries Asiaticoside, Asiatic Acid and Madecassic Acid, 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 ampoule format rather than by the list alone. Bonajour sells this Niacinamide ampoule in Korea, and this is that version.
Key benefits
- Niacinamide, the active this ampoule is built around
- Asiaticoside, Asiatic Acid, Madecassic Acid and Allantoin on the same list, actives
- Dipotassium Glycyrrhizate and Centella Asiatica Extract further down the same list
- Hydrolyzed Glycosaminoglycans further down the same list
- Niacinamide named fourth on the manufacturer list printed on this page
Key actives
Niacinamideactive
Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. On this ampoule's own ingredient list it is named fourth.
Asiaticosideactive
Asiaticoside is one of the four active triterpenes isolated from centella and the most studied of them. Korean formulas name it separately when they want to show which fraction of the plant they standardised. The panel names it eighth on this ampoule's list, beside Niacinamide.
Asiatic Acidactive
Asiatic Acid is the third of centella's four triterpenes and the aglycone form, meaning it has no attached sugar. It is oil soluble, so it turns up in cica creams and balms more than in watery layers. It is named ninth on this ampoule's list, alongside Niacinamide.
Madecassic Acidactive
Madecassic Acid is the fourth centella triterpene. A list that names all four is telling you the extract was standardised rather than simply pressed, which is the difference between a cica claim and a cica formula. The panel names it tenth on this ampoule's list, beside Niacinamide.
Allantoinactive
Allantoin is a comfrey-derived compound used to condition skin and soften the outer layer so it feels smoother. It is one of the standard additions to a formula built for easily irritated skin. The panel names it eleventh on this ampoule's list, beside Niacinamide.
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 Niacinamide and not three changes at once.
What else is on the list besides Niacinamide?
Asiaticoside, Asiatic Acid and Madecassic Acid. The order they are printed in on this ampoule's panel is the order on the box, so you can see where Niacinamide sits relative to them. Further down the same panel: Allantoin, Dipotassium Glycyrrhizate and Centella Asiatica 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 to use
- Apply to clean, toned skin, pressing in gently before the next 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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Korean-market original
The Original Korean Formula ampoule from Bonajour, 13g formulated with Niacinamide and Asiaticoside, 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 the key actives in this formula, quoted from the medical sources linked beside each.
Centella can make your skin appear more hydrated, plumper and healthier.
Samantha Stein, PA-CDermatology physician assistant, Cleveland Clinic Allantoin can tone down the dryness of the individual cells. It increases the water content of the skin, which means it helps to hydrate and moisturize.
Wilma Bergfeld, MDDermatologist, Cleveland Clinic
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
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