Which type of nail enhancement typically requires a form for application?

The type of nail enhancement that typically requires a form for application is hard gel nails. This method involves the use of a form to sculpt the nail extension directly over the natural nail or a tip, allowing the technician to create the desired length and shape. The form provides a framework that supports the gel as it cures under a UV or LED light, resulting in a strong and durable enhancement.

In contrast, acrylic overlays utilize a different application method that does not typically require a form, as they are applied directly over the natural nail or use tips for added length. Nail tips also function as a base that is adhered to the natural nail, which does not necessitate the use of forms. Shellac polish, meanwhile, is a hybrid product that is essentially a gel polish and is applied directly to the natural nail without any form, focusing instead on color and shine rather than creating an extension.