Elderberry isn't a new discovery. Ancient Greeks used it as medicine at the start of the Common Era, and by the early Middle Ages, Charlemagne ordered elder trees planted throughout his kingdom so the remedy would always be within reach. European and Native American communities carried on their own elderberry traditions for generations, and by the 1500s and 1600s, people were writing entire medical texts about the plant alone.

That history is exactly why elderberry syrup remains a staple in wellness cabinets today: a simple, antioxidant-rich remedy people have leaned on for centuries, long before it ever had a marketing campaign.