I had heard of other known cat friends that Feliway would help me in stress or anxiety. Since my cat 'Lizzy' in the first moving days was very nervous (anxiety, they got scaly skin, only ate the bare necessities and often hid under the duvet), I took the test with the atomizer. I can now find ... after 4 weeks application time that 'Lizzy' has become a lot more balanced. It is no longer so anxious, dares now much more, has become even more cuddly and eating regularly again. They also often dressing up, the fur is from day to day better. Improving one sees not after a few days. It is likely to vary from cat to cat. I registered after 1-2 weeks that it was my cat better. Although the complete atomiser is at first glance not very cheap, but a calmer happier cat is the reward. The specified 4 Weeks From 'Flacon full' to 'Flacon empty' are very realistic in an apartment size of 50-80m². This product receives my full recommendation to buy.