After this summer, my skin tone started looking more uneven than usual. Not in a dramatic way, but enough that I kept noticing it when I did my skincare or applied base makeup.
So I started looking for a brightening ampoule and ended up buying the CNP Derma Answer Brightening Booster TXA-PDRN Ampule. I was mostly curious about the TXA-PDRN combination, but the texture turned out to be just as important as the ingredient list.
Buying It at Olive Young
I saw it at Olive Young for ₩42,000 for 30ml. It’s not really an impulse-buy price for an ampoule, so I did hesitate a little.
The reason I still bought it was simple: I wanted something more focused on brightening and dark spot marks, not just a basic hydrating serum. The formula looked targeted enough that I was willing to try it.
Compared with Mediheal Madecassoside Serum
Before this, I had been using the Mediheal Madecassoside Serum. That one felt more like a light blemish-care serum built around madecassoside, cica, and niacinamide.
The CNP ampule feels like it’s aiming in a slightly different direction. It still has niacinamide, but the main focus is TXA-PDRN, with glutathione added on top. Compared with the Mediheal serum, this feels closer to brightening and uneven-tone care than calming care.
Ingredient Direction
The full name is CNP Derma Answer Brightening Booster TXA-PDRN Ampule. In Korea, it’s sold as a functional brightening ampoule, so it’s pretty clear what the product is trying to do: dull tone, uneven tone, and visible marks left after blemishes or sun exposure.
I don’t expect any ampoule to make dark spots disappear quickly. For me, this works better as a steady night-care product for days when my skin tone looks a little tired or patchy.
The two ingredients I paid the most attention to were tranexamic acid, also called TXA, and PDRN. TXA is often used in brightening-focused skincare, especially products aimed at uneven tone and pigmentation marks.
PDRN is one of those ingredients that keeps showing up in Korean skincare lately, especially in products focused on skin condition and elasticity. I liked that this ampule didn’t feel like a simple one-note brightening serum; it has more of a tone-care plus skin-condition angle.
It also includes glutathione and niacinamide, which makes the brightening direction even clearer. Glutathione shows up often in Korean tone-care lines, and niacinamide is one of the most common ingredients in brightening products here.
That was the part that made the formula feel convincing to me. It’s not just one trendy ingredient on the front label. The formula as a whole is built around uneven tone and brightening care.
Texture, Absorption, and Finish
The texture isn’t watery. It has more body to it, and even when I picked it up with the dropper, it felt a little heavier than the lightweight serums I usually reach for in summer.
If you’re expecting something fresh and fast like a water serum, this might feel heavier than you imagined. That was the first thing I noticed.
On the back of my hand, the drop held its shape for a moment instead of spreading right away. The color looks like a sheer reddish-pink, but it doesn’t leave color on the skin once it’s blended out.
The scent was also closer to an ingredient-like smell than a sweet skincare fragrance. It wasn’t strong enough to bother me, but it didn’t feel like a deliberately perfumed serum either.
When I spread it out, it slipped over the skin at first and needed a few extra taps to settle in. It doesn’t absorb instantly, so I wouldn’t choose this on a rushed morning.
For me, it makes more sense in the evening, when I have time to apply it properly and let it sit before moisturizer.
After it absorbed, there was still a noticeable tacky finish. Not suffocating, but definitely not the clean, weightless finish I would want right before makeup.
That’s why I’ve been using it as a night serum rather than a morning serum. If you want something light, fresh, and quick to layer, the texture may be a little disappointing. But if you’re choosing based on the brightening and dark spot mark ingredients, this is the kind of ampoule that makes more sense as a focused evening step.
The Basics
| Brand | CNP Laboratory |
| Product | Derma Answer Brightening Booster TXA-PDRN Ampule |
| Volume | 30ml / 1.01 fl. oz. |
| Price in Korea | ₩42,000 at Olive Young when I checked in store |
| Main ingredients I noticed | TXA, PDRN, glutathione, niacinamide |
| Texture | Thicker, slightly viscous ampoule with a tacky finish |
| Best for | Night routine, uneven tone, dull-looking skin, dark spot mark care |
| Keep in mind | It’s not the lightest texture, so I wouldn’t pick it as a quick morning serum under makeup |
Where to Buy
I bought mine at Olive Young in Korea, where the 30ml ampule was ₩42,000 when I checked in store. Since the price is not especially low, I would compare it with other brightening ampoules first if texture matters a lot to you.
I also looked for the exact same CNP TXA-PDRN ampule on Amazon, but I couldn’t verify a matching listing. Since the CNP products I found were different ampoules or other lines, I’m not linking a substitute here.
Last verified: September 2026. Olive Young prices and online availability can change.
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