What should a practitioner do when nail beds are between sizes for nail tips?

When nail beds are between sizes for nail tips, using a larger size and filing down is the most effective approach. This ensures that the nail tip will cover the entire nail bed without leaving gaps or exposing the natural nail.

Filing down the larger size allows for a customized fit that conforms perfectly to the client's natural nail shape and size. It prevents the situation where using a smaller size might cause the nail tip to not fully adhere or protect the nail, potentially leading to lifting or even damage to the natural nail. This method also provides a more aesthetically pleasing result, as the filed edges can be shaped to match the natural contour of the nail.

Measuring again, while a good practice, may not always yield a different size, and skipping sizing altogether can lead to ill-fitting nail tips that compromise the quality of the application. Thus, choosing a larger size and adjusting it with filing is a practical solution to achieve the best outcome for the client.