dissapointed barely any boar bristles mostly nylon [SEP] when i brush with this i do not feel it going through the layers of my hair i being able to feel the bristles through my hair if i place my hand on the other side when i brush this does not do that i do have rather thick hair so it may not be the case for people with thinner hairanother reason for my disappointment with this brush is that it is mostly synthetic nylon bristles my hair becomes frizzy after using itthere is also a terrible chemical smell i have actually had this brush for years now writing a review super late because my good boar bristle brush broke and i had to use this one againoh boy the difference even after years of owning this brush and washing it occasionally it still stinks like chemicalsi kept it because i needed a brush for my long haired dogs anyway i went and bought a genuine boar bristle brush elsewhere