• ConvaTec DuoDERM CGF - Control Gel Formula Wound Dressing is made of hydrocolloid material and is moisture retentive. • Ideal for use with dermal ulcers, pressure ulcers (stage II - IV), leg ulcers, superficial wounds, burns and donor sites. • DuoDERM CGF wound gel is easy to remove and helps to protect the wound from bacteria and external contamination. • This wound gel dressing is also available with a wide outer foam border for hard-to dress areas.