Wondercide Natural Flea & Tick Shampoo Bar for Dogs & Cats to Kill & Repel Fleas 4oz Bar Smells great and repel insects for dogs and cats of all ages. Gently cleans skin & coat. Antibacterial and antifungal. Natural & organic. Therapeutic-grade essential oils Great first step in total natural flea and tick prevention 100% biodegradable: produces no plastic waste! No harsh chemicals, alcohol, artificial colors or fragrances. Made in the USA!