Didn't buy from him, just talked with him due to what appeared to be an influx in mites at the local show. He actually said he uses it on all animals he brings back that don't sell at the shows. Said a lot of other breeders at the show are starting to use it also and that since he started doing this years ago has never brought mites into his collection from a show. I don't know if that is what it is called or not, honestly doesn't sound familiar.