Petkin Doggy Sunscsreen Stick 14g The Petkin Doggy Sunscreen Stick is a quick and convenient way to apply sunblock to your dog. Simply rub on to your dogs ears, nose, muzzle, pink skin and the coat of light coloured or short haired dogs. Contains natural ingredients and a non- greasy formula that is gentle on skin. Puppies under 6 months, ask a vet before using. SPF 15 rating is based on human ratings.