The Cain & Able Collection products combine the rejuvenating experience of visiting a spa with the practical soothing and healing benefits of essential oils. All of the products in the Cain & Able Collection are All Natural. They do NOT contain harsh detergents, which can cause eye irritations, or skin allergies such as rashes or and hair loss. The products are also free from artificial colors and synthetic perfumes as the chemicals can dry out the fur/hair and cause allergic reactions. Products are tested on humans first. All Natural puppy-safe and formulated for dogs with sensitive skin and allergies. There are no harsh detergents synthetic perfumes or artificial colors. Compatible with topical flea control products. Peppermint oil rejuvenates and tea tree is a natural remedy for hot spots. Citronella oil helps repel fleas ticks and mosquitoes.