Eau) ●
TL;DR. This ingredient is the primary solvent and diluent in many beauty and personal care formulas. It dissolves compatible actives, sets texture and viscosity, and supports emulsions, gels, cleansers, and sprays.
What does Eau) do in a cosmetic formula?
This ingredient is the primary solvent and diluent in many beauty and personal care formulas. It dissolves compatible actives, sets texture and viscosity, and supports emulsions, gels, cleansers, and sprays.
Is Eau) clean?
From a clean-beauty perspective, it is well-tolerated and not a restricted-list concern. The main quality issue is purity, since finished formulas need appropriate preservation and manufacturing controls.
Is Eau) sustainable?
This material is locally sourced in most supply chains and readily returns to natural cycles. Its sustainability profile depends on regional scarcity, purification energy, and responsible manufacturing discharge practices.
Is Eau) COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic standards, although it does not count as organic content. It fits Green Chemistry well as a benign solvent with low material hazard, but responsible use still depends on conservation and efficient processing.
How does Eau) work chemically?
The molecule is small, polar, and strongly hydrogen-bonding, which makes it an effective carrier for salts, polyols, gums, acids, bases, and many surfactant systems. It is commonly used anywhere from trace levels to more than 90% of a formula and is stable across normal cosmetic pH ranges, but high levels require preservation because they support microbial growth.
Last updated 2026-05-13