1). Single strand by strand Fusion bonding (protein), bonding is about the size of a grain of rice, lasting 3 to 5 months.
2). Mini/micro Fusion Bonding. This method is used on my celebrity/WAG clients. Fusion bonding that is a third of the size of normal fusion bonding. This adds maximum volume, texture with impact. Get the celebrity hair like Cheryl Cole.
3). **NEW COLD FUSION**, cold fusion hair extensions are attached by using keratin-based polymer. That is attached near your roots one stand at a time. Instead of heat, this method works by using ultra sonic waves (or rapid impulses).
4). Micro loops/rings. Cold link system with a small lined metal ring.