Serotonin Molecule Silver Pendant Necklace Molecular Science Nerd Gift

Serotonin is a neurotransmitter believed to contribute to feelings of happiness and well-being. The shiny silver molecular Serotonin pendant is approximately an inch long and is free of lead , nickel , and cadmium . Chain is vintage silver tone and 16" long. More molecular jewelry coming soon , on a variety of ear wires and chains / necklaces!