Natural Factors Stress-Relax Saffron Extract has been clinically shown to help maintain a positive mood, promote restful sleep, and support emotional well-being. Saffron's crimson threads have impressive mood-improving and stress-relieving qualities that have been supported by clinical research. Natural Factors Saffron features Affron, a 100% pure source of standardized Spanish saffron extract that has been DNA-certified for authenticity and has undergone study in multiple clinical trials.* *These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.