MEDIHONEY Calcium Alginate Dressings can be used for wound bed preparation and through all phases of wound healing; they demonstrated efficacy from onset of a wound through to closure, and they cleanse and debride due to their high osmolarity. These dressings also help to lower the wound pH thus creating an optimal wound healing environment. MEDIHONEY is a medical-grade honey derived from the pollen and nectar of the Leptospermum species of plant in New Zealand and Australia. It is unique among all types of honey in that it maintains its effectiveness even in the presence of wound fluid; as wound fluid enters the dressing, the honey is released while the dressing absorbs and forms a gel.