I’ve bought this for the third time and will continue to purchase. I have tried a few niacinamide serum and I prefer this one. It sinks into the skin quickly and leaves no film. You see results after about two weeks, even if you already used a niacinamide serum. I have sensitive skin and this left my skin feeling soft and dewy without any irritation. I use one pump in the morning and one in the evening as the first serum in my routine. Hope it will become available in larger sizes soon!

this is my favorite niacinamide, it works really well

This is an excellent serum. I have repurchasing a couple of times. It works very well for my mature oily skin and large pores. I love how it sinks into the skin without any stickiness and leaves it ready for the next products.

I loved this serum, it’s pleasant to use, great in calming my skin and I’ve noticed reduction of redness and pores. However consumption due to liquid consistency is very high and it lasted me about 3 weeks! It’s too pricy to repurchase… but I’d do it if I see it on a discount or in one of cult beauty’s boxes 

I order that serum second time already, I think it’s one of the best that now can buy with price-quality ratio. I use with another product same company Sunday Riley and happy with what I see in mirror