DI Water ●
TL;DR. It is the primary solvent and diluent in many formulas, dissolving salts, humectants, acids, bases, and extracts while setting the product’s texture and solids level.
What does DI Water do in a cosmetic formula?
It is the primary solvent and diluent in many formulas, dissolving salts, humectants, acids, bases, and extracts while setting the product’s texture and solids level.
Is DI Water clean?
It is broadly accepted in clean-beauty standards and has very low irritation potential on its own. The main quality issue is microbiological control, so formulas need appropriate preservation and manufacturing hygiene.
Is DI Water sustainable?
It is sourced from treated supply streams and purified through processes such as ion exchange, reverse osmosis, or distillation. Its sustainability profile depends on local scarcity, purification energy, and responsible plant operations rather than persistence or bioaccumulation.
Is DI Water COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic standards, although it does not count toward organic content. It fits Green Chemistry well when purification is efficient and the source is managed responsibly.
How does DI Water work chemically?
The molecule is small, polar, and strongly hydrogen-bonding, which makes it an effective carrier for electrolytes and many hydrophilic ingredients. Typical use can range from about 10% to over 90%, with product pH and stability driven mainly by dissolved ingredients because it has little buffering capacity.
Last updated 2026-05-15