3 Pieces Cat Calming Collar Adjustable Cat Pheromones Calming Collars, Reducing Anxiety for Pets, Reduce Stress Aggression and Anxious Behavior Suitable for Small Medium and Large Cats (15 Inches)

It worked on the kitten we have. It calmed him enough so that he quit over cleaning himself to missing fur

The calming collar does seem to have an effect on our cat.

Spent two days trying to keep the darn thing on my kitty. Eventually, doubled over the end and stick it in the loop. It stayed. Problem isn't it doesn't sem to work. It's been a week, so it should have calmed her at least a little by now, but my kitty isn't any calmer, if anything, she's even more wired and jumpy. Was looking forward to a little calm for her.

My cats love this and helps her stay calm

This is the greatest product I have gotten for my 3 cats it's a night and day difference it's so nice they love it udate it's not so great my oldest cat it was messing with her eyes took it off her eyes are ok my other two cats wore it 3 days and started digging at their self so took them off so I won't be buying this anymore

Bought this for my cats seems they are getting along with one another makes them more niceThey didn't work

My male cat chewed the calming collar and found him playing with it. I will be sending them back since he’s chewing it!

My two giant panther voids are absolutely and relentlessly tormenting to my smaller micromeow. We're talking 15 & 16 pounds each vs barely tipping the scale at 6 pounds. I've bought calming collars in the past, and they have seemed to make a difference. These? Nothing! While they look flashy with their fancy purple accessories, and smell like a hint of bug spray with a dash of grandma's closet; the collars did absolutely nothing to adjust their behavior. I gave it a good week's try. If anything, I feel like the obnoxiousness has increased- I guess I wouldn't be happy smelling like grandma and bug spray either, but they're taking it out on the wrong one. These things.... they're going back!