This is an all natural shampoo bar for your favorite critter, 2 or 4 legged. This bar is great for the sensitive and problem skin of the 4 legged critters in your life as well as your own skin! We use safflower oil in this soap for a light clean easily rinsed feeling. The essential oils in this bar (lavender, eucalyptus, fir needle, tea tree, and patchouli) are designed to help man and critter alike. Besides, I figure if you're giving your dog a bath, you'll end up with one too! Our ranch dogs, Digit and Black Dog, rave about it too! Of course, they'd rather rave than have a bath! It's also my husband's favorite! Don't use on cats. Tea Tree is not good for them!