Hydrolyzed Yeast Extract
AKA “Hydrolyzed Yeast”
Extract
Ingredient Facts
Hydrolyzed yeast extract
Extract · Skin Conditioning · EWG: 1
Plant-Derived
Skin Conditioner
Ferment
Extract
Clean
Hydrolyzed Yeast is the hydrolysate of Yeast Extract derived by acid, enzyme or other method of hydrolysis
CAS #
227025-31-2
Form
Liquid
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
Fermented yeast extracts have traditional roots in folk remedies and skincare preparations across Asia and Europe. Modern hydrolyzed versions were developed in the 20th century to concentrate beneficial proteins and vitamins for cosmetic formulations.
Skin Types
●all-skin-types
Best For
Dullness
Pregnancy & Breastfeeding Safe
Yes
Hydrolyzed Yeast
European Commission
EU Cosmetic Ingredient Database (CosIng)
Hydrolyzed Yeast Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
Probiotic, Paraprobiotic, and Hydrolyzed Yeast Mixture Supplementation Has Comparable Effects to Zinc Oxide in Improving Growth Performance and Amelio
Dang X, Choi SY, Choi YJ, Lee JH, Castex M et al.
Probiotics and antimicrobial proteins, 2024
Hydrolyzed Yeast
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Hydrolyzed Yeast Extract
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Jun 2026
Data: CosIng · EWG · CIR