USD5-HTP
5-HTP is a precursor to serotonin. Serotonin is a neurotransmitter involved in sending messages through the nervous system which contribute to a person's mood and well-being.
5-HTP is a precursor to serotonin. Serotonin is a neurotransmitter involved in sending messages through the nervous system which contribute to a person's mood and well-being.