How do i order halo hair? According to Halo Hair’s official website, you can start by ordering a free bottle: However – once you try to make an order, you’re redirected to the following page: As you can see – that’s an order page where you can select the quantity you want.Why choose halo hair salon? Located in the heart of North Camp, Farnborough, Halo Hair Salon offers a wide range of professional hair services at affordable prices. 01252 376061How do i choose the right size halo hair extensions? Before applying Halo, be sure to choose the correct wire size, otherwise, your extensions may sit too low or too high on your head. As a rule of thumb, the Halo should sit comfortably around the crown of your head. It should gently touch your head, and should not move when you shake your head.