Fusion is generally the preferred method which can last up to three to six months with skilled application and proper care. With fusion hair extensions, the extensions should be indistinguishable from your natural hair. If properly applied, the attachment site should be virtually invisible.
Fusion hair extensions can be applied in different ways: hot or cold fusion. Hot fusion or bonding uses hot glue to attach the extensions to your hair. These extensions can last up to 4 months.
Cold fusion is a new method, this method uses a keratin-based polymer to attach extensions to the root. As this method uses no heat, it is good for fine or thin hair. The polymer offers more flexibility than hot-glue, and results in more natural-feeling hair. These extensions can last up to six months.
