From a phytochemical perspective, herbal teas (correctly termed 'tisanes') are aqueous extractions of diverse plant compounds. Scientists analyze these extractions to understand how active molecules—such as flavonoids, mucilage, tannins, and essential oils—interact with human physiology. The scientific view emphasizes precision: measuring water temperature, extraction times, and molecular synergy (how different herbs interact when blended together) to maximize bioavailability and ensure safety, particularly regarding potential interactions with pharmaceutical drugs.