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TIRTIR

Niacinamide 20% Serum, 1.01 fl oz (30 ml)

4.6 · 225 reviews
2,736 ₽

Retinol Glutathione Dermatologist Tested Brightening · Firming · Pore Tightening A toning serum containing 20% niacinamide that tightens skin and evens out skin tone. Components: Dropper head (Elastomer) Dropper Cap (Plastic) Glass & Glass tube

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Retinol Glutathione Dermatologist Tested Brightening · Firming · Pore Tightening A toning serum containing 20% niacinamide that tightens skin and evens out skin tone. Components: Dropper head (Elastomer) Dropper Cap (Plastic) Glass & Glass tube

Customer reviews

5.0
verified purchase
Excellent product

Tirtir is one of Korea’s top brands with great quality products. This niacinamide serum is perfect is you want a glowing skin or glass skin like Koreans. I used it at night to get best benefits of it targeting your concerns like dark spots. It’s for sensitive skin as well.

5/1/2025
5.0
verified purchase
Good

I’m using it only one week daily and already seen the improvement of my skin no sense great quality the size is a great my age is 45 years old well packed and very gentle formula

11/22/2025
4.0
verified purchase
好的

Only use at night. I see pores are refined the next morning. Have not seen the effect of brightening yet. No scent and it is gentle to the skin.

8/30/2025
5.0
verified purchase

Great quality serum. Didn’t feel sticky, absorbed well into skin. Didn’t cause reaction or breakouts and has no scent.

10/31/2024
5.0
verified purchase
super effective

i think i buy again because it's fit to me

7/22/2026
4.0
verified purchase

I just started using this serum not even 1 month, I don't see whitening effect yet, may be it needs more time to get results.

7/14/2026
5.0
verified purchase
Good

The gel texture is quite sticky, but once spread evenly on the face, it absorbs quickly. It may take some time to see how much improvement is seen.

5/14/2026
5.0
verified purchase
great

This product has become very popular lately. I generally use a lot of products with niacinamide. I like it and recommend it.

4/7/2026
5.0
verified purchase
최고!

I recently added the TIRTIR Niacinamide 20% Serum to my skincare routine, and the results have been impressive. This high-concentration formula is a powerhouse for anyone dealing with persistent texture issues or enlarged pores. Despite the potent 20% dosage, the serum feels remarkably lightweight and absorbs quickly without leaving a tacky residue, making it easy to layer with other moisturizers. After consistent use, I noticed a significant improvement in my overall skin tone. It effectively fades post-inflammatory hyperpigmentation and controls excess sebum production throughout the day. My skin looks noticeably brighter and feels much smoother. The 30ml (1.01 fl oz) bottle is compact and travel-friendly, while the dropper allows for precise application. If you have oily or congested skin and are looking for a professional-grade treatment to achieve a refined, "glass skin" finish, this serum is a fantastic investment. It delivers clinical-strength results with a sophisticated, cosmetically elegant feel.

3/9/2026
5.0
verified purchase
Very good

I am very excited, good quality, size, my skin is very healthy after that

3/5/2026