Sorbeth-30 Tetraisostearate ●
TL;DR. This ingredient is a nonionic emulsifier and solubilizer, often used to disperse oils, pigments, and waxy materials in cleansers, makeup, and rinse-off formulas. It can help create stable emulsions and improve spread in oil-rich systems.
What does Sorbeth-30 Tetraisostearate do in a cosmetic formula?
This ingredient is a nonionic emulsifier and solubilizer, often used to disperse oils, pigments, and waxy materials in cleansers, makeup, and rinse-off formulas. It can help create stable emulsions and improve spread in oil-rich systems.
Is Sorbeth-30 Tetraisostearate clean?
From a clean-beauty perspective, the main friction is ethoxylation, which brings scrutiny around residual ethylene oxide and 1,4-dioxane if purification is not well controlled. It is generally considered low-irritation as a finished cosmetic ingredient, but it is not a favorite in stricter clean standards.
Is Sorbeth-30 Tetraisostearate sustainable?
This material is partly fatty-acid based and partly derived from petrochemical ethoxylation chemistry. It is expected to be more biodegradable than silicone-based alternatives, but its synthetic processing and potential palm-linked fatty feedstocks create sustainability caveats.
Is Sorbeth-30 Tetraisostearate COSMOS-approved?
It is not permitted under COSMOS-natural or COSMOS-organic because ethoxylated materials do not align with the standard. From a Green Chemistry lens, it has some favorable functionality at low use levels, but the petrochemical processing route and residue-control burden limit its fit.
How does Sorbeth-30 Tetraisostearate work chemically?
The molecule is a highly ethoxylated polyol fatty ester, giving it a bulky amphiphilic structure that can bridge polar and oil phases. It is typically used at low single-digit percentages, is broadly pH-stable in normal cosmetic ranges, and works best when paired with co-emulsifiers or oil-phase structuring agents for long-term stability.
Last updated 2026-05-13