This version of the dopamine molecule hangs horizontally. It is made of sterling silver and measures approximately 1. 5 inches in length. It hangs from a sterling silver rolo chain. The necklace length is 17 inches. If you need something longer, please let us know via convo at check out. We pride ourselves on being fast shippers so most of our orders go out within 24 hours of receiving payment. This makes a beautiful gift for your science loving friend.

It is packaged in an elegant black glass topped box that is accompanied by a silver informational card that reads: Dopamine has the chemical formula C6 H3 (OH)2 CH2 CH2 NH. It is an endogenous brain chemical that has been linked to producing feelings of pleasure and personal satisfaction, addiction, romantic love and movement.