Mar 23, 2015 - Zen Hair has formulated different application systems to suit the individual preferences of each client- this includes U-Tip and I-Tip. It's important . You have to hold the extensions against your hair and then apply the heat. Heating the . Can I use the heat method with I-tipped instead of U-tipped fusion hair? wikiHow . Flag as. Can I do this with t-tip extensions if I have keratin beads? Jun 19, 2013 - Pre-bonded U-Tip hair extensions has long been the preferred extension . You will not be able to apply U-TIPs by yourself, so you will need . Sep 23, 2017 - If you don't have U-tip hair extensions, check out our instructable on how to make them, then you can follow along in this video as Doc shows . The U-Tip Pre-Bonded Extensions are a Strand by Strand Fusion Application, and are attached using a Fusion Wand (AKA.Heat Connector, Hair Connector, . A utip/nail tip/pre bonded hair extension is a type of hair extension that is . Using keratin as a form of hair extension application has been around for many years .