Over the years, the hair on a few of my fuzzies tails started to thin out, from the tip to half way up to the body. After doing some research on the internet, I found using a mild soap or shampoo on the effected part of the tail got rid of the excess body oils, which caused the black heads. When the hair on Nipper's tail started to thin out, Doctor Thompson, of the Tavares Animal Hospital, recommended the use of Sulf OxyDex Shampoo, at least twice per week. This shampoo is distributed by DVM Pharmaceuticals of Miami Florida. It contains Benzoyl Peroxide (2.5%) and Sulfur (2.0%) as active ingredients. Smiles. Arlena Ferrets Rule My World! Furo Mafia: (Trouble, Flurry, Sneaker, Nami, Nipper) Brat Pack: (Taz, Stitch, Scamper, Sprite, Jezzabelle, Sheela) Rainbow: (Scooter, Bandit, Scottie, Princess, Storm, Calamity Jane, Frisky, QT-WeeOne) [Posted in FML issue 5239]