Awesome Product! [SEP] I have hair down to the middle of my back.  I was afraid this scalp brush would tangle my hair or pull it out.  It does neither.  I love this scalp brush and so does my husband.  He tends to get flakiness during low humidity (winter mostly) and this has kept him from getting any flare-ups.  I highly recommend this product!  Just be careful with it in the shower.  Because the outer part is plastic, it could break if you drop it in the tub.