caffeine ring | silver pp_lab physicians

physicians

the caduceus has been used as a medical emblem since the US Army Medical Corps adopted it in 1902

and microbiology teaching laboratories

It is also why you do not get chickenpox twice

allowing efficient oxygen uptake into blood and carbon dioxide removal

caffeine ring | silver pp_lab physiciansCaffeine ring sterling silver If you cannot read, write, or run a clinic before your second cup, you already know what the ring carries. Caffeine, 1,3,7 trimethylxanthine, the most consumed psychoactive drug on the planet. Worn here as a sterling silver ring in US sizes 5 to 9. The Chemistry of Caffeine Caffeine is 1,3,7 trimethylxanthine, structurally one methyl group more than theobromine (3,7 dimethylxanthine). It was first isolated from coffee