مصل التطبيع والتنعيم Bielenda Skin Clinic Professional Niacynamid

The serum is really effective. I bought another brand with a 15% concentration and was disappointed. In comparison, this one works much better. Sometimes I even apply it directly to problem areas. It reduces inflammation by morning. With regular use, my skin is much cleaner. However, at first, I didn't understand it either, but I saw the effect later on. I only use it at night and after some time, I apply moisturizer. It doesn't pill or feel sticky if you give it time to absorb into the skin. Just a few drops are enough for the whole face.

After using it on my skin, I noticed a sticky and unpleasant tightening effect. I had to throw it away after a couple of uses because it was unbearable on my skin. Although it's strange because I've been using this brand's hyaluronic serum for 5 years and it's always been great.