Hydrolyzed yeast extract is a yeast-derived ingredient broken down into smaller peptides, amino acids, beta-glucans, and minerals, used in skincare for its conditioning, hydrating, and antioxidant properties. It may support skin barrier function and reduce visible signs of irritation.
| Reported effect | How often | Notes |
|---|---|---|
Mild skin irritation or stinging | Uncommon | Typically transient and associated with sensitive skin. |
Contact allergic reaction | Rare | Possible in individuals sensitized to yeast-derived components. |
Redness or itching | Uncommon | Usually resolves after discontinuation. |
Folliculitis-like reaction or breakouts | Rare | Reported anecdotally; clinical evidence limited. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.