You can take them off yourself. You'll just need to soak them (and I mean SOAK them) in an acetone-based nail polish remover (they usually tell you to use non-acetone remover when you have tips because it will make them unglue!). You will have to soak for a long time! Then you should be able to scrape them off using a cuticle stick or something similar. It's the acrylic overlay that you will be scraping - not the actual tip. The tip itself should pop right off after soaking.