The 16 oz Tea Tree Shampoo is a Australian Tea Tree Oil shampoo that helps soothe the coat and skin. This is formulated to moisturize dry, flaky, and sensitive skin. The 8 oz Tea Tree Conditioning Spray is a simple spray that uses tea tree to cool and helps condition hot spots and dry, irritated skin. As it turns out the Tea Tree Oil is a known flea and tick repellent, which is a easy non-invasive way to reduce the fleas while making fur soft. It is simple to use as you just spray on and brush through.