Hydrolyzed Soy Protein

A mixture of proteins obtained from soybeans. It can have many different functions depending on the manufacturer, although it is most commonly used in skincare products as a humectant moisturizing ingredient.
All functions
Origin
Hydrolyzed Soy Protein

Overview

Hydrolyzed soy protein is a mixture of proteins obtained from soybeans. These proteins are hydrolyzed, meaning they have been chemically (or enzymatically) chopped up into smaller pieces - which helps with solubility.

This ingredient can have many different functions depending on the manufacturer, although it is most commonly used in skincare products as a humectant moisturizing ingredient that helps to attract water to the surface of the skin. Proteins also help a cosmetic product to form a stable film on the skin’s surface.

Science

1
CIR Safety (2015). Safety Assessment of Soy Proteins and Peptides as Used in Cosmetics.