Support serotonin production with Natural Factors Stress-Relax 5-HTP 100 mg, a pharmaceutical-grade supplement designed to promote emotional well-being and restful sleep. Time-release caplets minimize gastric discomfort and optimize absorption. Take 1 caplet 1–3 times daily with meals. Vegan, gluten-free, dairy-free, and free from artificial colors, preservatives, or sweeteners.