Askina Calgitrol patented matrix formulation combines calcium alginate and silver alginate with 10% of bonded water. In contact with exudate, the alginate matrix forms a soft gel allowing the liberation of silver ions. Askina Calgitrol THIN is a thin layer of silver alginate matrix. Soft and conformable, it is well adapted for deep and difficult-to-dress wounds. It should be used with absorptive secondary dressing, like Askina Foam.