Avena Sativa Kernel Extract

Avena sativa (oat) kernel extract is primarily a soothing, barrier-supporting ingredient used at low to moderate concentrations and is generally well-tolerated even in eczema-prone skin. Clinical experience and patch-testing data suggest a low irritation profile, but it is not completely inert—rare reactions can occur in highly reactive individuals or those with oat allergy—so I do not score it at 0.0/0.1. Safety Notes: In mass-market cleansers, toners, and moisturizers, Avena Sativa (Oat) Kernel Extract is often used as a low-level soothing/label claim ingredient around 0.01–0.1%, especially when paired with other botanical extracts. Mid-range leave-on barrier and sensitive-skin products commonly sit around ~0.2–2% depending on extract strength and supplier standardization. High-strength OTC “oat calming” serums/masks and eczema-support creams can reach ~3–5% extract (distinct from colloidal oatmeal powder, which can be much higher), with leave-on formats typically using higher levels than rinse-off due to intended skin benefit.