When you see “water\aqua\eau” on a product’s ingredient label, it simply means water. Manufacturers of cosmetics and personal care products are required by law to list all of the ingredients in the formula using their INCI (International Nomenclature of Cosmetic Ingredients) names. The INCI name for “water” is “aqua”. The term “eau” is French for water. If a cosmetics company puts water\aqua on their packaging in Canada, by law they have to add the French (no English without French), resulting in “water\aqua\eau”.