What type of water is used in cosmetics?
In cosmetics, "purified" water is used, which is chemically pure and undergoes filtration or processing to remove all types of impurities, including minerals, chemicals, bacteria, fungi, etc. It is deionized water, completely stripped of ions, and not distilled.
What is the purpose of water in cosmetics?
Water is used as the main solvent in cosmetics due to its properties and affinity with the skin. However, when a cosmetic product is exposed to air after its initial use, certain microorganisms, mainly bacteria, can proliferate in the water and alter the shelf life of the product. This is why the use of preservatives is necessary to maintain the properties of the product intact from its opening and throughout the indicated time period, as indicated by the Period After Opening (PAO) symbol on the label.