Water is the main component of a cosmetic product: therefore, its quality is essential. NAOS has designed a perfectly defined water, meeting the three fundamental criteria for physiological fluids: pH, oxidation resistance, and concentration of mineral salts. It optimises cellular functioning and preserves the balance of healthy skin. Components that can contribute to this patent: aqua/water/eau, disodium adenosine triphosphate, carnosine, laminaria digitata extract, aminoethanesulfinic acid, citric acid, as well as mineral salts.