A floral caffeine molecule structure perfect for students and teachers, or people who love chemistry and biology! Also perfect as a gift for those who love coffee or need caffeine to function.
Tags:
caffeine, espresso, coffee, i love coffee, chemistry
A floral melatonin molecule structure perfect for students and teachers, or people who love chemistry and biology! Also good for those who want to express their love of naps, sleep, and going to bed early in a subtle way.