Bought it used ? In that case ..... don't pull on the bristles. I've seen brushes shed for awhile and then settle down. Use it and shake it out. You might get lucky and have it quit shedding. I've got one that shed for a year and quit. If I showed it to you .... you would never know it shed a hair. They have thousands and thousands of bristles. What may look like a lot may not even make a dent. Then again, it might ....