Hydrolyzed Soy Protein Extract

TL;DR. This ingredient is mainly used as a conditioning, humectant, and light film-forming material for hair and skin. It can improve combability, reduce a dry feel, and add a temporary smoothing effect.

What does Hydrolyzed Soy Protein Extract do in a cosmetic formula?

This ingredient is mainly used as a conditioning, humectant, and light film-forming material for hair and skin. It can improve combability, reduce a dry feel, and add a temporary smoothing effect.

Is Hydrolyzed Soy Protein Extract clean?

From a clean-beauty perspective, it is generally well accepted and not a common restricted-list material. Sensitivity is uncommon, though people with legume allergies may prefer patch testing because residual peptide fragments can remain.

Is Hydrolyzed Soy Protein Extract sustainable?

This material is plant-derived, renewable, and expected to be readily biodegradable. Its sustainability profile depends on crop sourcing, with traceable, non-GMO, and deforestation-conscious supply chains being stronger choices.

Is Hydrolyzed Soy Protein Extract COSMOS-approved?

It is generally permitted under COSMOS-natural and COSMOS-organic when the feedstock and hydrolysis process meet allowed-input rules, with GMO restrictions applying. It fits Green Chemistry well when made by water-based enzymatic or mild acid hydrolysis from renewable biomass.

How does Hydrolyzed Soy Protein Extract work chemically?

The molecule profile is a mixture of short peptides, amino acids, and soluble nitrogen-containing fragments produced by breaking larger plant proteins into lower-molecular-weight pieces. It is commonly used at low single-digit percentages, is water-soluble, and is typically formulated in mildly acidic to neutral systems where peptide stability and preservation are easier to manage.

Last updated 2026-05-16