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KOREAN PHARMACY

Bonajour

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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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$40.00

13 g

$30.77 per 10 g

  • Korean-market formula
  • Ships from California or direct from Korea
  • Korean barcode and batch code intact
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

Purchase options

In stock. Arrives in 3 to 7 business days

We accept

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  • 30-day returns
  • Free US shipping on orders of $100 or more
  • Tracked delivery to your door

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

4Niacinamideactive

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.

All products with Niacinamide

8Asiaticosideactive

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.

All products with Asiaticoside

9Asiatic 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.

All products with Asiatic Acid

10Madecassic 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.

All products with Madecassic Acid

11Allantoinactive

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.

All products with Allantoin

Inside the formula

Inside the formula

15
Ingredients declared
No fragrance
on the list
4Niacinamide8Asiaticoside9Asiatic Acid10Madecassic Acid11Allantoin
  • 4Niacinamide
  • 8Asiaticoside
  • 9Asiatic Acid
  • 10Madecassic Acid
  • 11Allantoin

Where each key active sits on the declared ingredient list, by entry number. Position is proportion: the further forward, the larger its share.

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Bonajour Derma MDK Repair Ampoule 13g

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.

How to use

  1. 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.

Complete the routine

Total for 3 items$107.50

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Bonajour Derma MDK Repair Ampoule 13g

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We’re on gram!

Creators trying on authentic Korean skincare routines and products from us.

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    Jasmine Loo · YouTube

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  • A first try of the Dr. Althea serum on camera.

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Bonajour, Korean-market original

The Original Korean Formula ampoule from Bonajour, 13g formulated with Niacinamide and Asiaticoside, shipped from California or direct 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.

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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