For the treatment of infected skin in dogs, this shampoo contains 3% Benzoyl Peroxide in a shampoo base. Contains Glycerin to soften the coat.Directions:Shake well before using. Wet the coat with warm water and apply sufficient shampoo to create a rich lather. Massage Pyoben into wet coat, lather freely. Rinse and repeat. Allow to remain on hair for 5 to 10 minutes, then rinse thoroughly with clean water. Frequency of use: initially two to three times a week for four weeks, then reducing to once a week, or as directed by your vet. May be used on cats and dogs of any age.