L-Tryptophan CapsulesDiscover the power of l tryptophan for emotional well being and restful sleep. Studies show that l tryptophan supplementation can improve mood and promote a positive outlook. It's even been found to reduce irritability during the menstrual cycle. Plus, l tryptophan supports healthy sleep quality and can help you relax and control cravings. And with the added benefits of vitamin B6, you can optimize the metabolism of l tryptophan for maximum results.