What is the most common end paper technique used to avoid bunching at the ends?

The most common end paper technique used to avoid bunching at the ends of the hair during the perming process is the double flat technique. In this method, two end papers are used, one on the top and one underneath the hair section being permed. This creates a smooth and even surface for the hair, helping to ensure that the ends are thoroughly saturated with the perm solution and receive uniform processing. By using two end papers, the hair is more securely wrapped, reducing the risk of bunching or uneven curl formation. This technique is especially beneficial for longer or thicker hair, as it provides additional control and stability when wrapping, leading to a more consistent and high-quality result.