This serum feels slightly greasy when I dispensed it into my palm but somehow is readily absorbed by my skin and does not leave an oily residue once I smooth it out. And it instantly locks in the moisture on my face and leaves a dewy finish. This product could feel a little pricey but rest assured a little bit of it goes a long way since it is easy to apply and smooth out; I could use three drops of it to cover my entire face plus my neck. I also shared this with my mom who's in her 50s, and her pores have noticeably shrunken. I used to be able to see her pores standing about two feet away from her and now I need to be about one foot to half of a foot and peering intently at her face to see them.

This product was reviewed on paulaschoice.com

Now ordering my second bottle. I've used PC's 2% BHA liquid for about 7 years now and it's established itself as the core staple in my daily routine, but I foresee it sharing that title with this Niacinamide serum. I call it a "low-key rockstar" because the effects are subtle--I find this product works "slowly but surely" (emphasis on "surely"). I've learned to value products like this because they're gentle enough to use every day as intended, without much concern for overuse and potential to damage the skin.

I'm approaching 30 and occasionally get a hormone-induced pimple or two that can leave long-lasting red marks, especially on the apples of my cheeks. This product helped to reduce the redness quickly. The other undeniable effects have been an improvement in the observable plumpness and suppleness of my skin and has improved and evened out its overall moisture level. Overall, my skin looks healthier, smoother, and brighter.

The texture isn't watery nor goopy--it goes on smoothly and easily absorbs with my moisturizer. I wouldn't say it's "lightweight" but it isn't heavy, either.

This product was reviewed on paulaschoice.com

I started using this product in late December. I followed the instructions to the letter, my skin became irritated from the product. I thought the irritation would resolve itself. It didn't. I stopped using it for two weeks, and started again; the same thing happened. Very disappointing considering the price.

This product was reviewed on paulaschoice.com

I waited to give this product an honest chance before reviewing it. I have been using this serum for over a month now, and the cons definitely outweigh the pros. At first, my skin purged when using this serum. It's not surprising, but I didn't love getting four massive, deep pimples on the same day. It took almost two weeks to get rid of them. Some of the hyperpigmentation is still there too. Over time, I also learned you have to be very, very careful about what you mix this product with. I use other exfoliating products (AHA masks, vitamin C, Benzyol Peroxide, salicylic acid, etc.) Obvs, I'm not piling them on at the same time, but it's become difficult to use anything with this serum. The mild fragrance in my moisturizer stings now because of using this product. To put it lightly: this Niacinimide 20% doesn't play well with others. On top of everything, the cost of this serum is extreme for such an underwhelming experience. It's true what derms say. "consistency over intensity". Naturium's 12% serum is available for less than half the price, and it can mingle with my other ingredients to support my skin. - To make a long story short, this serum isn't worth the money. It made things harder to support my skin with other useful ingredients/products, and the results I see after 5-6 weeks were not worth the trouble. My pores are pretty much the same, and it's made me more prone to breakouts due to irritation.

This product was reviewed on paulaschoice.com

I have been plagued for years with blackheads on my nose due to enlarged pores. Nothing I have tried has ever reduced the blackheads I got daily till this product. I just put a drop or two on my nose twice a day after washing my face and my blackheads have disappeared. I recommend this product to anyone fighting blackheads or enlarged pores.

This product was reviewed on paulaschoice.com

I like the product but it it puffs up and irritates leaving red streaks near my eye area. It also makes my face peel. Is this because I mix it with 1% retinol and vitamin c 25%?

This product was reviewed on paulaschoice.com

I always tolerated retinol, glycolic you name it until my 40s. my skin is now very sensitive and was also getting very dull, red blotchy and uneven. This serum has really made a huge difference in my skin tone and texture. When I run out and forget to reorder I notice a huge difference in my skin and it's not good. Keep this stocked!

This product was reviewed on paulaschoice.com

I love this product! I use it to spot treat deep pore blemishes- I am prone to breaking out on my cheeks & jawline & found these types of blemishes difficult, if not impossible to treat prior this. I also sometimes dab a small amount over my forehead if I notice a blackhead forming & then Poof! Gone overnight! It is very strong & can leave a white residue/dry patch which wipes away easily, so best to use sparingly. Great value.

This product was reviewed on paulaschoice.com

This was the perfect compliment to my routine. I tried the 10% first, and it was good, but this is better.

This product was reviewed on paulaschoice.com

I really wanted to love this because I have the "orange peel skin" they describe on my chin. Unlike other reviewers, this doesn't make me break out. But after 2-3 days use my chin starts peeling like mad. Can't even go out, it so obvious. Real shame. Might be okay for other skin types though.

This product was reviewed on paulaschoice.com