Captain Zack Barking Up the Tea Tree is an anti-microbial / anti-fungal moisturizing shampoo. Natural actives of Tea Tree help soothe the coat and skin, reduce skin irritation and inflammation, while repelling parasites from your furry friend. Care Instructions - Gently massage shampoo into the coat to form a rich creamy lather. Pay special attention to AVOID eyes. Rinse thoroughly and use regularly to maintain a healthy coat.