I purchased a bottle of the CBD oil for my 2 year old beagle. He has some pretty serious anxiety and aggression issues. I noticed a positive change in his behavior and demeanor in about 24 hours. I give him a couple of drops on his food twice a day. He is much calmer when in situations that tend to scare him. He is listening better and his response to at home training has improved immensely. He has always been a pretty good sleeper, but even more so now. He has no more anxiety about going to bed, and is great until I get up in the morning. I can feel great about helping my dog feel comfortable without drugs that may have harmful side effects. I am extremely thankful that this product was recommended to me.