Bioderma Sensibio Defensive Serum is a daily protective skincare product designed to help defend skin against external aggressors that can lead to irritation and discomfort. It works to soothe and hydrate, promoting a more resilient complexion. This serum is formulated to reinforce the skin's natural barrier function, helping to reduce the appearance of redness and improve overall skin comfort. It is suitable for sensitive skin types seeking enhanced protection and a calmer appearance.