Review on 🐱 LEGITPET Cat Calming Collar with Hemp - Natural Pheromones to Reduce Cat Stress - Waterproof & Adjustable - Fits Up to 15 Inch - 30-Day Long-Lasting - Calmer Cat in 15 Minutes by Lynn Martinez

I was terrified to try this calming collar. We adopted a kitten a few weeks ago and Keiki was very jealous of him. We have Feliway, Feliway plugins, lots of toys, we take special care, we play, we treat. He was still aggressive towards the new kitten and his brother. This was the last step before taking antidepressants. He's much calmer, cuter, sweeter and focused on himself instead of constantly attacking. I would highly recommend this collar. One thing is that it doesn't come off, so I apply it very loosely. A must have when you need a calming collar.