If you are looking to create the look of longer, fuller, or thicker lashes, then eyelash extensions are for you. These extensions are applied to your existing lashes to give them the look that you are trying to achieve and may be made from a variety of different materials. If you have any questions about what the extensions are made of, contact your practitioner to see which they offer. The three most common and popular types of lash extensions are synthetic, silk, and mink. The length of these extensions varies from 6 mm to 17 mm, depending on the look that you are going for. Once you have selected the material and length of lashes you would like, then these are then applied and secured in place with a specially formulated, semi-permanent glue which will not damage or irritate your eyes or your natural lashes. Some people are concerned that lash extensions may ruin your eyelashes. This is untrue. If you receive lash extensions by an expert, then they do not pose any increased risk to causing damage to your natural eyelashes. They are a completely safe procedure that can be used to give you the thicker, longer lashes that you desire.