I've seen a few products lately in the health food stores that are cedar oil based. Anyone have any experience with this topically? I bought some and am using it on their bedding but am leary of putting it on the dogs, although how much worse could it be than Advantage?? Note - I don't have any reptiles (except a tortoise who lives outside), birds, cats, etc. - just the dogs. The product I bought is Mere's ATLAST! Flea and Tick Spray: Active ingredient: 3% cedar oil Inert ingredients: water, ethyl lactate and lavender 97%.