Toleriane Ultra Dermallergo Hydrating Serum 20ml is a daily soothing peptide serum for allergy-prone and sensitive skin. It helps reduce skin irritation and redness in the face while also strengthening the skin barrier with an optimal tolerance formula to help reduce the penetration of allergens. It is formulated to act as a skin barrier repair serum and an anti-redness serum, instantly hydrating the skin with hydration that lasts up to 48 hours.