Everything you need to know about TAPE-IN-EXTENSIONS are a method for adding volume and length to hair, consisting of hair sewn onto a skin-like base with an invisible adhesive tape. These extensions are applied by sandwiching sections of your own hair between two tape strips in a process known as the "sandwich method". They offer a lightweight, natural, and virtually invisible look, blending seamlessly with your natural hair and are popular for their quick application and non-damaging, no-heat installation process.