Oxytocin is a nanopeptide that acts on the nervous system. Oxytocin causes a feeling of happiness and closeness. It’s hard to find any other agent that can compare to oxytocin. Oxytocin can reduce anxiety and depression, improve interpersonal contacts, increase self-confidence and contribute to an increase in motivation. Oxytocin is one of the most frequently chosen peptides for those wishing to improve overall well-being.