Oat (Avena sativa) meal extract, often referred to as colloidal oatmeal, is derived from finely milled oat kernels and contains beta-glucans, avenanthramides, and starches that help soothe, hydrate, and protect the skin barrier. It is widely used to relieve itching, irritation, and dryness in sensitive or eczema-prone skin.
| Reported effect | How often | Notes |
|---|---|---|
| Allergic contact dermatitis | Rare | Localized redness, itching, or rash may occur, particularly in individuals with oat or grain sensitivities. |
| Contact urticaria | Very rare | Hives or immediate localized reaction reported mainly in atopic individuals with oat protein sensitization. |
| Mild transient stinging or irritation | Uncommon | Temporary sensation possible on broken or highly compromised skin. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.