Solgar 5-HTP is a complex formulated to help those individuals coping with modern day stresses and strains which may be effecting sleep or mood balance. This unique formula is designed to help you switch off from a busy day and aid a restful sleep in just 1-2 capsules a day. 5-HTP is a chemical created from an essential amino acid, then converted into serotonin. With our modern lifestyles, it can be hard to switch off after a long day and many of us find it difficult to wind down and get good quality sleep.