Sodium Silicate ●
TL;DR. This ingredient is used mainly as an alkaline pH adjuster and builder. It can raise formula pH, support cleansing systems, and help stabilize certain mineral or high-pH formulations.
What does Sodium Silicate do in a cosmetic formula?
This ingredient is used mainly as an alkaline pH adjuster and builder. It can raise formula pH, support cleansing systems, and help stabilize certain mineral or high-pH formulations.
Is Sodium Silicate clean?
From a clean-beauty perspective, it is not a typical restricted-list ingredient, but its high alkalinity means irritation potential depends strongly on concentration and final formula pH. It is generally viewed as acceptable when used in controlled, well-buffered systems.
Is Sodium Silicate sustainable?
This material is mineral-derived, commonly made from abundant sand and soda ash through high-temperature processing. It is inorganic, so biodegradability is not the right measure, but it does not behave like a persistent organic pollutant in wastewater.
Is Sodium Silicate COSMOS-approved?
It is generally permitted under COSMOS-natural and COSMOS-organic when it meets the standard’s rules for mineral-origin ingredients and processing. Its Green Chemistry profile is mixed, with abundant feedstocks and low bioaccumulation concern, but energy-intensive manufacture and high alkalinity are caveats.
How does Sodium Silicate work chemically?
This compound is a water-soluble inorganic alkaline salt that forms monomeric and polymeric silicon-oxygen anions in water. It is stable in strongly alkaline systems, can gel or precipitate as pH drops, and is usually used at low functional levels unless the product is specifically designed around high pH.
Last updated 2026-05-13