What is deionized water (DI water)?

Deionized water, also known as demineralized water / DM water (DI water, DIW or de-ionized water), is water that has had almost all of its mineral ions removed.

Only Water that is free of toxins, pollutants and microbes is used in the formulation of cosmetics and personal care products. Water used for this purpose is also referred to as distilled water, purified water and aqua, the name used in the European Union.