h2oMatch helps you understand mineral waters using official label data such as sodium, calcium, magnesium, bicarbonate and fixed residue. You can search for a specific water, compare waters side by side, use the Water Calculator to filter by mineral preferences, and get personalized matches based on your lifestyle and taste preferences. It is designed to make water labels easier to understand and mineral water choices more transparent. Not all water is equal! Find the ones that fit you best!