This is a great little tool. My daughter and I both have VERY thick hair. Mine is especially difficult because it's curly (I have a combination of type 3A and 3B curly hair). My daughter always had a hard time getting to her scalp, which left some shampoo and conditioner not reaching her scalp, which caused some flaking and dandruff. Since she's been using this, that has stopped. It's made it much easier for both of us to get down to the root shaft. For people saying "just use your fingernails," this works better. I've had long and short nails and this still works better. It's easy to grip and clean. No complaints here.