Only very pure water can give Hint water its wonderful, well-rounded flavor. Our regional Hint bottlers employ reverse osmosis and other techniques to generate water worthy of our amazing flavors while also preserving the environment to satisfy our purity and great taste requirements. Hint Water is a nutritious, sugar-free, zero-calorie flavored water, and it contains no artificial sweeteners, unlike other flavored drinks. It’s also caffeine-free and sodium-free. However, propylene glycol, a processed chemical often used in antifreeze, is present in Hint Water’s “natural tastes.”