Don't buy any of that crap. Ferrets are like cats, they don't need to be bathed unless they actually get dirty, the more you wash the more oils you strip, the more they overproduce and smell. Plus they are already prone to dry itchy skin. Mine get baths never. Ferretone is well accepted, but it's also preserved with BHT/BHA, you can use a high quality fish oil instead but I only ever use oils for distraction during checkups or nail clippings. Stay far away from ferretvite or furovite or the commonly sold laxatives, all are chock full of sugars, insulinoma disease in a tube basically.