Serotune is the perfect choice for me on how to increase serotonin because it is a natural food supplement for boosting mood and motivation. This product has increased my overall mood, motivation, and outlook. Up to this day, I still continue taking this food supplement because it just works as what it has promised. This supplement has also improved my sleep cycles because I can sleep for eight hours straight after taking this supplement. After three days of using this product, I already saw and feel great results. I have been using this product for more than four months and it still makes me feel better.