Linkage is a protein primer that acts as a molecular bridge between the keratin in the nail and the gel. It contains absolutely no acid or damaging chemicals. You will be amazed at the perfect bond, and how it virtually eliminates lifting when the nails are properly applied.
Make sure to always store Linkage properly as it will harden if left open! The lid must be kept tightly on when not in use. To clean the bottle threads use a DRY towel. It will peel the dried prouduct away from the threads.