Jigsaw Health 5-HTP w/SRT - 120 Tablets Jigsaw Health 5-HTP w/SRT is the raw material your body uses to make serotonin, the master mood-regulating neurotransmitter. Increasing the amount of 5-HTP in your body naturally increases serotonin. Because 5-HTP has a very short half-life in the body, Jigsaw Health employed their patented Sustained Release Technology (SRT), so that you get a much longer-lasting effect. Jigsaw Health 5-HTP w/SRT contains: No artificial colors No chemical additives No artificial sleep aids No stimulants No dairy or gluten No yeast or soy No Peak X No pesticides No preservatives Vegan Safe What is Serotonin Serotonin is a neurotransmitter that plays an important role in the regulation of anger, aggression, mood, sleep, sexuality, and appetite. It is vital for promoting and maintaining overall feelings of well-being and emotional calmness. What Can 5-HTP Help Me With? Promote a balanced stress response. Support restful sleep. Maintain mental and emotional well-being. Support stable mood. Jigsaw HealthJigsaw Health was started by Pat Sullivan (father) and Patrick Sullivan Jr. (son). Pat struggled on and off with recurrent, chronic health conditions for over 30 years. Fatigue, insomnia, gastro-intestinal problems, anxiety and depression. All difficult to overcome. But along the way, he found answers. It specializes in Sustained Release Technology (SRT) which releases nutrients over time for maximum absorption and effectiveness.