Secret Halo Hair Extensions are a new hair extension method.And where most hair extensions provide longer and thicker hair by attaching to your own hair. Secret Halo Hair Extensions sit on your head, gently wedged on with an invisible wire. Secret Halo Hair Extensions are a one and done method to achieve longer, fuller hair. They're perfect for first-time users and simple enough to apply for everyday wear in just a few minutes. Transform your hair in seconds. No glue, no damage! Finest quality Secret Halo Hair Extensions. Free shipping worldwide.