I was going to attempt to create dog shampoo back when I sold my soaps, however, after all the hoops and regulations, I opted not to. If you make a claim with a pet shampoo, spray, salve etc, it is still regulated by the FDA. Further, if you make any claims of 'bug or flea repelling' or something similar, it is also regulated by the EPA. The EPA has a whole list of 'approved' natural ingredients you can use. If you stray from that list, you'll need to get an independent lab to test your product (LOTS of $$$) before submitting the results to the EPA for approval. Plus, my normal liability insurance at the time did not cover pet products and the amount was just too great an increase to add them to my line.