Before even making an appointment, ask questions. First, ask what the qualifications are of the eyelash extension technician. Next, inquire on the quality and source of the eyelash product. A professionally educated eyelash technician should be the only person applying your durable eyelash extensions. This is not where you want to cut corners on looking your beautiful best. Only a knowledgeable and trained technician who is personally taught how to use quality and safe methods of applying eyelashes and who use superior products should be considered. The eyelash product should be of the highest quality and not a cheap replica purchased from an unknown online vendor. By asking questions first, you will save heartache and expense later.