81 Serotonin Tattoo Ideas
Serotonin is the key hormone that stabilizes our mood, feelings of well-being, and happiness, while also helping with eating, sleeping, and digestion. Serotonin is rapidly becoming a popular tattoo design idea when expressed symbolically in body art as the chemical compound. The following collection of top 81 serotonin tattoos can serve as useful guides for your next tattoo decision and...