Inactive Ingredients: Water/Aqua/Eau ●
TL;DR. This ingredient is the primary solvent and diluent in many formulas, dissolving salts, humectants, preservatives, and other polar materials. It also sets the base phase for gels, emulsions, cleansers, sprays, and creams.
What does Inactive Ingredients: Water/Aqua/Eau do in a cosmetic formula?
This ingredient is the primary solvent and diluent in many formulas, dissolving salts, humectants, preservatives, and other polar materials. It also sets the base phase for gels, emulsions, cleansers, sprays, and creams.
Is Inactive Ingredients: Water/Aqua/Eau clean?
It is broadly accepted in clean-beauty frameworks and is generally well tolerated, with no meaningful restricted-list friction. Quality depends on purification and microbial control rather than inherent skin-sensitization concerns.
Is Inactive Ingredients: Water/Aqua/Eau sustainable?
It is mineral-origin and renewable through natural cycles, but sustainability depends on local sourcing, purification energy, and manufacturing stewardship. It does not persist as a synthetic pollutant or bioaccumulate.
Is Inactive Ingredients: Water/Aqua/Eau COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic standards as a formulation solvent, though it does not count as organic content. It aligns well with Green Chemistry as a benign solvent when purification, heating, and transport are managed efficiently.
How does Inactive Ingredients: Water/Aqua/Eau work chemically?
The molecule is small and highly polar, with strong hydrogen bonding that supports dissolution of ionic and polar ingredients. Typical use can range from under 5% in concentrates to more than 90% in toners, gels, and cleansers, and formulas usually require preservative systems because high levels support microbial growth.
Last updated 2026-05-13