The Best!
Charcoal is such a nervous cat and prone to stress related urinary illness. He has been put on calming drops to help him not to over groom on numerous times by the vet. Since using this Feliway Optimum ( NOT the original one, which did nothing for Charcoal) he has become a different cat, very relaxed and chilled and no longer jumpy. Very pleased with the results so far. It is rather expensive but well worth it as it delivers!