Yeast Amino Acids are a blend of amino acids derived from yeast fermentation, used to hydrate, condition, and support the skin's natural moisturizing factor. They help improve skin softness and may contribute to barrier support in topical formulations.
| Reported effect | How often | Notes |
|---|---|---|
Mild transient irritation or stinging | Rare | Occasionally reported on sensitive or compromised skin shortly after application. |
Allergic contact dermatitis | Rare | Possible in individuals with yeast-derived ingredient sensitivities or yeast allergy. |
Redness or itching | Very rare | Isolated reports, typically resolving after discontinuation. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.