Aqua is probably one of the most important ingredient used in cosmetic products. It is an odorless, tasteless, inorganic, transparent, and nearly colorless substance that occurs naturally on the Earth’s surface. If the list of ingredients shows Aqua on the top – it almost definitely means that Aqua ingredient is present in more quantity than any other ingredient in the product. Based on the category, Water makes up almost 60-85% of the product. It may even go up to 95% in rinse-off products like shower gels and shampoos. However, some products like bar soaps and some makeup only contain traces of the ingredient Aqua.