Serotonin Earrings (Molecular Structure)
Show your intelligence and interesting outlook on life through your accessories.  The molecular structure of serotonin is cut from silver plated metal and  hangs from sterling silver lever back ear clasps that stay put and are easy to put on.  The earrings come packaged in an elegant black glass topped box with a description that summarizes a variety of facts about Serotonin such as, that it is the neurotransmitter or brain chemical that has been implied in mood, sleep and that many anti-depressants work by altering serotonin activity.   Great gift for your science loving friends.