5-HTP (4-hydroxytryptophan) is a naturally occurring compound in the body that is important for the formation of serotonin. Serotonin is a neurotransmitter (chemical messenger between cells) found in the brain that helps to regulate our moods, appetites, and sleep patterns. Our levels of serotonin can become depleted due to stress, toxins, poor diet, and an unhealthy lifestyle. 5-HTP can help provide our bodies with important building-blocks to adequate levels of serotonin in our brains. Restoring a balance in serotonin levels helps us to balance and up-lift our moods, support restful sleep, and give us a general overall sense of well-being and good health.