BACTIGRAS Antiseptic Dressing Smith & Nephew 7457 | Size: 10 x 10 cm | Box of 10 Chlorhexidine Acetate Tulle Gras Dressing BACTIGRAS is indicated for adjunctive treatment and prevention of infection in skin loss lesions, including wounds and burns. Chlorhexidine acetate is a white to pale cream microcrystalline powder, odourless or almost odourless. It is soluble (at 20ºC) in 55 parts of water and 15 parts of alcohol. Composition of Dressing : Chlorhexidine Acetate BP 0.5% in white soft paraffin BP.