10.17.22
Fave!
ontains 15% niacinamide. There are a very few brands that offer the niacinamide percentage this high. This was my first time using concentrated niacinamide. I thought my skin would breakout or purge very badly but I gave it a go anyway. It has a transparent jelly-like consistency. After cleansing my face, I mix two drops of this serum with my essences. I got a very deep tan after my last vaccination and I think my tan is fading away quickly than I expected. My complexion is also getting softer, more “translucent” if you know what I mean. It didn’t break me out at all. My rating: ⭐️⭐️⭐️⭐️⭐️/5

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08.25.22
Great Product
I used this product every other day so as to ease it into my routine. I already use 10% niacinamide in my routine so my skin was used to a high percentage niacinamide. I did not find this product to be irritating in any way. I noticed that with consistent use, the product helped with pore reduction- although very minimally. It also helped to control excessive sebum. However, I have not noticed any brightening using this product. I always focus on the antioxidant effects of niacinamide in my routine as opposed to its other benefits like brightening and acne care. This product at 15% gives a great antioxidant kick. I love it!

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08.24.22
Help reduce the acne scar and also strengthen your skin
First apply , it’s a little harsh maybe because of first try . I try it like a weeks now and it’s does help my acne pigmentation and gives my skin bright.
08.10.22
Cosrx The Niacinamide 15 Serum:
Product Claim: Cares all about acne & Effectively controls excess sebum and tightens Pores Main Ingredient: Niacinamide 15% My experience: I am very nervous and surprised that this serum contains 15% of Niacinamideand to be honest I am very afraid to use it at first because my skin is not in good condition. But for sure i am still trying it on my skin and it kinda Dries out my skin and i don’t like this serum at all. I think this serum is more for oily skin not the dry skin type like me.
08.06.22
Firmer looking skin
Its an amazing ingredient to be added in my routine,it shrinks my pores and provide a firmer looking skin