5-HTP 50 mg.
Natural Nutrition Center

Now, scientists have discovered that depression, anxiety, and sleeplessness are all related to a deficiency of the neurotransmitter serotonin (5-hydroxy-tryptophan, 5-HTP) in the brain. Restore the serotonin, and your mood improves, anxiety melts away, and you sleep restfully through the night.
L-5-HTP

Other symptoms of serotonin deficiency can include: carbohydrate cravings, migraines, obsessive-compulsive behaviors, and other behavioral disorders.

5-HTP 50 mg. 60 Capsules $11.75