You will enjoy the light lemon scent, but please do not spray directly into or close to your animal's face, eyes or nose. Dogs and horses both have long noses, which means they have more olfactory bulbs than we do and are sensitive to aromatic molecules - such as essential oils. I spray our two dogs (both 50+ pounds) liberally throughout their body area and around their necks - especially under their collar. Fleas usually come up to the collar on their way to the eyes to drink. I spray my hand and pat down the facial and ear area of the dogs. Abby, the Golden Retriever, will go rub her nose in the grass a minute but Brit, the Brittany Spaniel, seems to enjoy the spray down. I think he knows it keeps the fleas and flies off of him. I think they both just enjoy the rubbing that goes with it. On small dogs, do a skin test first by spraying a small amount on the belly where there is less hair and leave overnight. If there is no adverse reaction such as a rash or red area, then apply by spraying your own hand and patting down the dog. The bottle will provide an easy-to-use spray that can be applied easily over the entire body.This product also provides a good deodorizing scent to your pets.