Name: Niacinamide 20% Skin Boosting Ampoule
Brand: REASONABEAUTY
Rating: 4.56 (16 reviews)

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This is a Health Functional Food certified by the Ministry of Food and Drug Safety (MFDS) of Korea, designed to help maintain and improve your health.

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Tell us about what you liked - texture, results, skin type, etc

Tell us what didn’t work - texture, skin reaction, or why you wouldn’t recommend it

리즈너뷰티

Niacinamide 20% Skin Boosting Ampoule

Irritating

Absorbs Well

Contains Artificial Fragrance

Causes Itching

Feels Harsh on Skin

Causes Allergic Reactions

Leaves a Sticky Residue

Removes Sebum

Improves Skin Texture

Improves Skin Tone

Improves Complexion

Clear

Manages Pores

Boosts Radiance

There's nothing particularly disappointing, but it can cause a slight burning sensation when blemishes are severe.

It worked well for blemishes and soothing my skin. The hydration level was decent, making it suitable for daily use.

나이아신아마이드 20% 스킨 부스팅 앰플

I've been using Paula's Choice 10% Niacinamide for several bottles now. Looking for a cheaper alternative, I found this product has similar effectiveness, but the texture is disappointing. The viscous formula leaves a slightly oily and sticky feeling.

The reasonable price for a high-concentration product makes it great for mixing and using in various ways. I recommend it for those who enjoy moisturizing formulas and niacinamide.

The previous packaging was more convenient. With the current one, it's frustrating when you're running low because the dropper can't reach the remaining product.

It seems like a decent niacinamide product. The 20% concentration is quite high, so I'm mixing it with my moisturizer. I really wish they'd bring back the discontinued 10% niacinamide ampoule! If you look at the reviews for that product, everyone's asking for it to be relaunched.

It leaves a white powdery residue. To be honest, I'm not really missing it when I don't use it.

You can definitely feel the niacinamide working. Some days my skin tingles a bit.

I don't use toner - I apply this serum right after cleansing my face.

You can get it cheaper on Coupang than on the official website. The official site is only more affordable when you have a sale coupon.

I've been using this for several bottles now, and I love how it's evened out my complexion and brightened my skin. Personally, I feel like it's also helping with my pores somehow. Since it contains 20% niacinamide, I highly recommend doing a patch test before using it regularly.

It might be too concentrated for beginners. If you're specifically looking for a high-concentration niacinamide product, this is not a bad choice in terms of price-performance ratio among 20% products. It's frequently on sale on the official website and Coupang, so avoid paying full price.

1. There's a slight chemical scent, but it's not too off-putting.
2. When I finish my skincare routine with this, my skin feels itchy and a white residue appears... It's fine if I apply a moisturizer on top though.
3. It's quite frustrating that they set a high regular price and constantly sell it on sale.
4. As it's a high-concentration vitamin product, there might be some mild irritation.

1. It really does an excellent job controlling oil. When I apply it in the morning, my skin feels as matte as if I've used powder.
2. While using this product, I did see some improvement in my blemishes, though I'm not entirely sure if it's solely due to this product...
3. Given that it contains 20% niacinamide, if niacinamide is effective, this product should definitely work wonders.

It might sting a bit for those with super sensitive skin, but it's generally fine for most people.

I've been using this consistently and my skin has improved overall.

There aren't really any downsides I can think of. If I had to mention something, the product can dry and flake off in a powder-like form if it gets on the bottle opening. I wipe the opening clean each time I use it.

The formula is colorless and odorless, flowing like water. It absorbs quickly when applied, but can cause a tingling sensation on bare skin due to its high niacin content. It works well layered over toner or serum. Rather than saying it brightens the complexion, it's more accurate to say it clarifies it. I could feel an improvement in skin texture after just one day. The blemish-induced pigmentation visibly fades with each passing day. I also appreciate that the bottle is brown, reducing the chance of light exposure.

If you don't control the amount, it can leave a white cast.

I can't find any downsides, even if I try. This brand makes me curious to try their other products too.

It's convenient. The price and clean ingredient list are great. Niacinamide is the main active, supported by other beneficial ingredients. It seems to control sebum, though I'm not sure if it's reducing production or absorbing existing oil. Either way, it's effective for oil control. I'm looking forward to seeing pore-tightening effects. There's absolutely no irritation, which is fantastic. I love that it comes in a brown bottle. However, I haven't noticed any significant brightening or texture improvement yet.

When applied alone, it can be a bit irritating and causes redness on my skin. I've been mixing it with my moisturizer instead.

It brightens my complexion and effectively controls sebum. Blemish marks also fade quickly.

There's nothing particularly bad to mention. If I notice anything while using it, I'll come back and update my review.

I'll need to use it more to be sure, but my skin texture has really improved already. Plus, I feel like my complexion looks a bit brighter.

When I feel any irritation, I mix it with my moisturizer before applying.

I originally used the 10% version, but since it was discontinued, I switched to the 20%. It felt slightly irritating on my skin.

Controls sebum production
Refines skin texture
Gives a clearer complexion
Helps manage pores

Korean Reviews

Niacinamide 20% Skin Boosting Ampoule

2 Reviews