Serotonin molecule can be worn as a pendant or an earring. The hole for links are 1.5mm diameter This is for the pendant only and it does not come with a chain or hook.
Serotonin is a chemical created by the human body that works as a neurotransmitter. It is regarded by some researchers as a chemical that is responsible for maintaining mood, appetite and sleep. Serotonin also has some cognitive functions, including memory and learning. Modulation of serotonin at synapses is thought to be a major action of several classes of pharmacological antidepressants. .