Serotonin is an incredibly interesting and integral part of our beings. Feeling happy? Thank serotonin. We made this neon green chemical structure for those who appreciate this neurotransmitter as much as we do. The necklace cord is waxed cotton with a slip knot closure so you can determine the length of the necklace. It is appropriate for both men and women!"
Found at PterofractylArt's Etsy shop.