Bristles shed and get stuck in your hair. Nylon bristles are longer than their boar counterparts [SEP] I ordered this brush as boar bristle brushes are really good for thicker/frizzier hair. Boar bristle brushes help to smooth layers of hair as compared to nylon brushes that can leave lumps in the hair and not fully lay down and smoothen hair because of how spread apart the bristles are. This brush does have nylon bristles- which kind of defeats the purpose of having a bristle brush because the nylon bristles are longer than the boar bristles making it harder to let the boar bristle sink into lower layers of your hair. I was not too happy realizing how much longer the nylon bristles were comparatively. From the picture it looked like they would be the same length. The boar bristles also aren’t as sturdy as other boar bristle brushes I’ve owned- they do not glide through thicker hair as easily and tend to bend because they do not want to sink into the hair and rather glide across. I’ve owned many other boar bristle brushes that actually sink in a little bit to help untangle as well as de frizz and smoothen your hair. Lastly, it sheds…a LOT. I kept touching my hair after to make sure the brush was getting my hair smooth and I kept feeling something rough in my hair- there were a lot of little pieces of boar stuck in my hair! With each swipe of the brush it would loose 3-5 bristles, and those bristles would cling to my thick hair and get stuck in. The only way to get them out was to wash my hair and as this is an on the go style brush that isn’t a very good quality. I would not want tiny little bristles stuck in my hair if I do a touch up while I’m out with family/friends or touching up my hair before a business meeting. I did not enjoy my experience with this brush- because of the length of the nylon bristles not allowing the boar bristles to penetrate my hair and the fact that the boar bristles shed way too much. Personally, I do not recommend this product. There are other boar bristle brushes out there that won’t break the bank and are high enough quality that they don’t shed. You can even find other smaller travel ones like this that work better in my personal opinion. The size is great for a little on the go pick me up but the quality of the bristles is a setback.