Several major global brands are certified as 100% natural spring water in 2026, meaning the water is collected from an underground formation from which water flows naturally to the surface. Top brands include Evian (sourced from the French Alps), Fiji Water (from an artesian aquifer in the Yaqara Valley), and Acqua Panna (from the hills of Tuscany). In the United States, Mountain Valley Spring Water and Icelandic Glacial are highly regarded for their purity. It is important to distinguish these from "Purified Water" brands like Aquafina or Dasani, which are typically municipal (tap) water that has undergone filtration and mineral addition. In 2026, transparency in labeling is strictly enforced, so if a bottle says "Spring Water," it must geographically originate from a protected spring source. For those seeking the highest mineral content, Gerolsteiner is a popular sparkling natural mineral water that also meets these 100% natural criteria.