Soy Acid ●
TL;DR. This ingredient is primarily a plant-derived fatty acid blend used to build cleansing soaps, emulsifiers, and opacity or body in creams and cleansers. It can also add light emollience and cushion to the formula.
What does Soy Acid do in a cosmetic formula?
This ingredient is primarily a plant-derived fatty acid blend used to build cleansing soaps, emulsifiers, and opacity or body in creams and cleansers. It can also add light emollience and cushion to the formula.
Is Soy Acid clean?
From a clean-beauty perspective, it is generally well accepted and not a common restricted-list concern. Sensitivity is usually formulation-dependent, especially in high-pH soap systems, while refined material has little relevance to food allergy concerns because protein residues are typically very low.
Is Soy Acid sustainable?
It comes from a renewable crop oil and the molecule class is readily biodegradable. The main sustainability questions sit upstream, including crop certification, GMO status, pesticide practices, and land-use pressure in large-scale agriculture.
Is Soy Acid COSMOS-approved?
It is generally compatible with COSMOS-natural and COSMOS-organic when derived from approved plant feedstock and produced through allowed splitting or hydrolysis processes. Its Green Chemistry profile is strong because it uses renewable carbon, simple processing, and biodegradable chemistry, with sourcing verification as the key caveat.
How does Soy Acid work chemically?
Chemically, this material is a mixture of mostly C16 to C18 long-chain carboxylic acids, with both saturated and unsaturated chains. It has limited water solubility as the free acid, is often neutralized to form cleansing or emulsifying salts, and the unsaturated fraction can oxidize, so antioxidants and low air exposure improve formula stability.
Last updated 2026-05-13