Your pet spends most of its life exposed to dirt at ground level - whether playing in the yard or snoozing under your bed. Also, the waxy oil secreted by your pet's skin is detrimental to cleanliness as it attracts and holds dirt. Dirt and oil on your pet's skin nurture bacteria growth, the cause of offensive pet odor that can spread throughout your home. Nobody likes a smelly pet or home, but more important, the fitness of your pet's skin affects your pet's health and happiness.