- Urea Salves Help Moisturize Very Dry Skin on Your Fingers, Heels, Hands, Elbows, Knees and Feet – Completely Fragrance-Free! – Bianca Rosa Urea 15% – Salve Ointment will soak up and hold moisture in the dehydrated regions of your epidermis such as your knees, elbows, heels, fingers and hands. Blended with jojoba oil and enriched silk protein, Bianca Rosa Urea 15% – Salve Ointment will help make your skin feel and appear tensile and renewed. – Silk powder is created from fine quality silk using