Fast relief
This provides relief within 24 hrs. It is a little fiddly/takes some fine motor skills and patience to correctly apply. However, the result is 10,000% worth it!!! The little plastic strip stays in place for months, and after it grows out to the edge or falls off, I have found the correction of my curved nail lasts 3-4 months before I notice the nail starting to curve again and need to place another strip.