Barrier4 Blister Protection
Prevents blisters, hotspots and irritation from all types of shoes. Aerosol sprays on totally clear to work with all skin tones. Hypoallergenic and clinically proven safe and effective. Dries in 90 seconds for up to 6 hours protection, ~20x longer than wax sticks. Washes off with warm water, soap and a washcloth.