
Anatomy to analogy
At the pharmacy’s front shelf sat a row of slick bottles, a good quarter of them crowned with chrome or beige lids: Radiance Boost Serum, Anti-Aging Serum, Deep Repair Serum. What these had in common, apart from their pleasing promises, was that they were, well, not serums. But serum—the pale sediment of centrifuged blood—does to…