Yes, our products are completely sulfate-free and that is very important. Sulfates are commonly used in many personal care products (such as soap and toothpaste) as foaming agents, but they are essentially detergents that can be harsh and irritating to both humans and pets. Our dog shampoo may not lather as much as those with sulfates, but it still effectively cleans your pet's hair and skin. It is also important to use more water instead of more product to activate the shampoo since water is the key agent in the cleaning process. Using more product can actually cause buildup on the hair and skin if not rinsed out properly.