The short answer is yes, you can use both mane and tail on dogs. However, there are a few things to keep in mind before doing so. First, make sure that the products you're using are specifically designed for dogs. There are many products out there that are made for horses but not necessarily dogs. Second, always follow the instructions on the label carefully. This will help ensure that you're using the product correctly and safely. And lastly, be aware that some dogs may be allergic to certain ingredients in these products. If you notice any adverse reaction in your dog after using either mane or tail, stop immediately and consult your veterinarian.