What should be the thickness of hard wax used in esthetic treatments?

In esthetic treatments, particularly those involving hard wax, the advised thickness is similar to that of a nickel. This thickness is optimal for effective hair removal while ensuring the wax adheres appropriately to the hair without causing unnecessary pain or discomfort to the client. A nickel's thickness strikes a balance between providing enough structure for the wax to hold together during the removal process and being thin enough to allow for flexibility, which helps in pulling away the wax smoothly from the skin.

Using a thickness that deviates from this guideline—such as too thick—could lead to difficulties in removing the wax, potentially causing discomfort or skin irritation. Conversely, if the wax is too thin, it may not bond effectively with the hair, leading to incomplete hair removal and a less satisfactory result for the client.