Bioderma Sensibio Defensive Rich Active Soothing Cream Sensitive skin can have a dual origin: a natural sensitivity resulting from a biological dysfunction (sensitive skin) or a sensitivity induced by the environment and the way of life (sensitised skin).Resulting of advanced Bioderma research, defensive technology acts on these two types of sensitivity. This technology not only calms the symptoms associated with sensitivity but also strengthens the skin's self-defence and acts on the vicious circle of sensitive skin to provide long-term results.