PIVOT Calcium Alginate Dressing is a fibrous highly absorbant, all-natural biodegradable material derived from seaweed, which assists in maintaining a moist environment for optimal wound healing. PIVOT Calcium Alginate Dressing can absorb 20 times its weights in exudates, soak up loose debris from the wound bed, and provide a virtually painless dressing change. All-natural; adaptable to wound size and shape; easy to apply, reposition and remove.