DermaBlue+ Foam is a polyurethane/polyether foam dressing impregnated with methylene blue (up to 0.25 mg/g), gentian violet (up to 0.25 mg/g) and sodium zirconium phosphate silver (up to 7 mg /g). DermaBlue+ uses a proprietary manufacturing process to bind these three ingredients to the foam, providing broad-spectrum antimicrobial and antifungal protection within the dressing.