Coloplast Woun'Dres Collagen Hydrogel Wound Dressing promotes a moist wound environment and autolytic debridement by rehydrating and softening dry wounds and necrotic tissue. Woun Dres Collagen Hydrogel contains Allantoin, which is a skin protectant that stimulates tissue growth, and Panthenol, which maintains an optimal moisture balance. Coloplast Woun Dres is a clear, amorphous gel which allows easy wound visualization. LATEX-FREE. Rehydrates dry wounds and eschar.