A qua/Water/Eau ●
TL;DR. This ingredient is the primary solvent and diluent in many formulas, helping dissolve salts, humectants, acids, bases, and some actives while setting texture and concentration.
What does A qua/Water/Eau do in a cosmetic formula?
This ingredient is the primary solvent and diluent in many formulas, helping dissolve salts, humectants, acids, bases, and some actives while setting texture and concentration.
Is A qua/Water/Eau clean?
It is broadly accepted across clean-beauty standards and is generally low-irritation when properly purified. The main formulation issue is that its presence supports microbial growth, so preservation and manufacturing hygiene matter.
Is A qua/Water/Eau sustainable?
This material is sourced from purified supply streams, so its footprint depends mostly on purification, heating, cooling, and transport. It has no persistence or bioaccumulation concern, but resource stewardship can matter in high-use manufacturing.
Is A qua/Water/Eau COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic standards, although it does not count toward organic percentage calculations. From a Green Chemistry view, it is a benign solvent, with the strongest alignment when purification and processing are energy-efficient.
How does A qua/Water/Eau work chemically?
The molecule is small, highly polar, and strongly hydrogen-bonding, which makes it an effective carrier for ionic and polar ingredients. Use levels can range from trace amounts in concentrates to more than 90% in gels, toners, cleansers, and emulsions, and formulas containing it generally need preservative support unless packaged or processed to remain sterile.
Last updated 2026-05-14