Sodium Htdroxide ●
TL;DR. This ingredient is primarily a pH adjuster and neutralizing agent, used to raise pH, neutralize acids, and support soap formation in some cleansing formulas.
What does Sodium Htdroxide do in a cosmetic formula?
This ingredient is primarily a pH adjuster and neutralizing agent, used to raise pH, neutralize acids, and support soap formation in some cleansing formulas.
Is Sodium Htdroxide clean?
Clean-beauty frameworks generally allow this ingredient in small, controlled amounts, but finished-product pH matters because concentrated raw material is strongly alkaline and irritating. It is not a common allergen and is usually assessed by final formula safety rather than by its presence alone.
Is Sodium Htdroxide sustainable?
This material is made industrially from brine through electrolysis, so its footprint depends on electricity source and manufacturing controls. It is inorganic, not bioaccumulative, and environmental concern is mainly pH change from unmanaged discharge rather than persistence.
Is Sodium Htdroxide COSMOS-approved?
It is permitted under COSMOS when used for functions such as pH adjustment or neutralization. From a Green Chemistry view, it is simple and non-persistent, but it is not renewable and its production can be energy intensive.
How does Sodium Htdroxide work chemically?
This compound is a strong inorganic base that fully dissociates in water, making it effective at neutralizing acids and shifting formula pH quickly. Use is typically as needed rather than at a fixed percentage, often below 1% in finished products, and compatibility depends on controlling final pH to protect skin feel, preservative performance, and pH-sensitive actives.
Last updated 2026-05-16