Double-sided adhesives
Once oils are cleaned from the scalp and it has been dried, a toupee can be applied directly to the head using double-sided adhesives, which is a fast and easy method. These adhesives generally come in tape and glue form. This way is not recommended for people who perspire a lot since sweat and body oils can cause the adhesive to eventually fail.
Metal fasteners
In this method, metal fasteners are attached to a person's natural hair. The toupee is then clipped on. Though generally more stable than adhesives, strenuous activity can still cause the hair piece to come loose.
Snaps
Snaps are generally considered to be the most secure way to fasten a hair piece. In this method, the toupee is fastened to snaps tied or sewn directly into a person's natural hair by a professional.