A hygienic cover for a hair brush is an elastic plastic netting of lycra polyester stitched into a tunnel shape with open and closed ends. This cover is rolled on a hollow insert with two open ends. A hairbrush is inserted into and through the insert. The closed end of the cover hits the end of the brush and the cover is stretched over the brush and slides off the insert and compresses around the brush head. The cover is porous and the holes grow when stretched, allowing the brush bristles to pass through the cover. When allowed to slide off the insert and collapse around the brush, the cover closes tightly around the bristles to prevent debris from reaching the brush head. The cover protects the brush in use. After each use, the hygienic cover can be taken off and replaced by a new cover.