Serotonin Key Chain

Serotonin is a neurotransmitter that plays a role in mood, memory, sleep and cognition.

• Giantmicrobes are based on actual microbes, cells, organisms and other critters, only 1,000,000 times actual size!
• Plush from all new materials. Stuffed with polyester fiber fill. Surface washable: sponge with water & soap, air dry.
• Each plush microbe includes a printed card with fun, educational and fascinating facts about the actual microbe or cell.
• Every product meets or exceeds U.S. and European standards for safety. For ages 3 and up.