CBD is an incredible molecule which has a varied range of therapeutic properties. A study which was published in the Journal of Psychopharmacology showed that CBD reduces the cases of anxiety and other related disorders. Another study published in 2014 suggested that CBD does have potent anti-anxiety as well as anti-depressant effects.
CBD provides significant changes in the neurochemistry of the brain. It has positive influence on the target receptors in the hippocampal region which manages the emotional processing.
CBD has actually shown to increase the 5-HT1A transmission and affects serotonin faster than SSRIs. This is probably one reason why CBD based products have the potential to overcome the limitations of currently prescribed anti-anxiety medication therapies.
Furthermore, it has also been found that repetitive CBD usage allows the hippocampus in the brain to regenerate neurons. You can learn more by watching this amazing video https://www.youtube.com/watch?v=R4d2PmrVEcw&t=2s