Purified Water /Eau Purifiée

TL;DR. This ingredient is the primary solvent and diluent in most beauty formulas, forming the continuous phase for emulsions, gels, cleansers, and sprays. It helps dissolve salts, humectants, acids, preservatives, and many botanical extracts.

What does Purified Water /Eau Purifiée do in a cosmetic formula?

This ingredient is the primary solvent and diluent in most beauty formulas, forming the continuous phase for emulsions, gels, cleansers, and sprays. It helps dissolve salts, humectants, acids, preservatives, and many botanical extracts.

Is Purified Water /Eau Purifiée clean?

From a clean-beauty perspective, this ingredient is well-tolerated, non-sensitizing, and not a restricted-list concern. Quality matters because microbial control and low dissolved impurities are important for formula stability and safety.

Is Purified Water /Eau Purifiée sustainable?

This material is typically sourced from treated municipal or natural supplies, so its footprint is mainly tied to purification, transport, manufacturing volume, and wastewater handling. It has no persistence or bioaccumulation concern, but responsible resource use still matters at scale.

Is Purified Water /Eau Purifiée 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 as a benign solvent with minimal chemical transformation, low residue burden, and broad compatibility.

How does Purified Water /Eau Purifiée work chemically?

The molecule is small, highly polar, and hydrogen-bonding, which explains its strong solvency for ionic and polar materials. Use levels commonly range from about 10% to over 90%, and pH, preservation, and dissolved minerals must be controlled because they strongly affect stability and microbial risk.

Last updated 2026-05-14