Presenting crucial information on the state of the science in trans-ungual drug delivery, this comprehensive overview provides a useful tool to assist in the development of products to treat and solve nail diseases. A growing area of pharmaceutical research, the search for efficient delivery techniques that can cross the nail barrier has yielded several effective strategies. Discussing existing techniques, ongoing research, new approaches, and basic concepts in trans-ungual drug delivery, this book summarizes the current knowledge and represents a jumping-off point for creating novel techniques of drug delivery across the nail.