Aqua (Water ●
TL;DR. This ingredient is the primary solvent and diluent in many formulas, dissolving compatible actives, salts, humectants, and preservatives. It also sets the continuous phase for gels, emulsions, cleansers, and sprays.
What does Aqua (Water do in a cosmetic formula?
This ingredient is the primary solvent and diluent in many formulas, dissolving compatible actives, salts, humectants, and preservatives. It also sets the continuous phase for gels, emulsions, cleansers, and sprays.
Is Aqua (Water clean?
It is broadly accepted across clean-beauty standards and is generally well tolerated on skin. Clean-standard scrutiny is usually about purification quality and preservation of the finished formula, not the ingredient itself.
Is Aqua (Water sustainable?
This material is typically sourced from municipal or purified supply streams, then treated by filtration, deionization, distillation, or reverse osmosis. It is inherently biodegradable in the practical formulation sense and does not create persistence or bioaccumulation concerns.
Is Aqua (Water COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic standards, although it does not count as organic content. From a Green Chemistry view, it is a benign solvent and processing medium, with the main footprint coming from purification, heating, cooling, and transport.
How does Aqua (Water work chemically?
The molecule is a small polar solvent with two hydrogen atoms bonded to one oxygen atom, giving it strong hydrogen-bonding capacity and broad compatibility with ionic and polar materials. It is often the largest fraction of a formula, and its microbial quality, pH adjustment, electrolyte load, and preservation system strongly affect finished-product stability.
Last updated 2026-05-13