Serotonin is a neurotransmitter (like dopamine), melatonin is responsible for skin pigment.
wholapola Reviewed by wholapola on . weed depression i just saw a commercial on the tv that said that depression can be caused by high seratonin levels. according to beachguy's signature, one J increases seratonin levels 4,000%. could this be why there are a lot of depressed smokers out there? Rating: 5