Several comments have allergy problems or moderate, occurred in some animals. For me, there's nothing to report. The collar of the carrier is a castrated cat of one year immediately adapted to the wear of the article. No side effects were reported, both in terms of the allergy to the animal's behavior. The article even gives off a pleasant aroma which has also disrupted by the flair of our cat, still effective hunting. Finally, the collar has done its office and no pest infestation were reported so far.
