As long as your lash extensions have been applied properly by a professional, they will not ruin your lashes and your natural ones will grow back. Damage to the natural lashes in which they may have issues growing back is often the result of improper application.
This can also be a small risk if extensions that are too heavy for the natural lash are applied. Visiting a properly licensed technician like the ones at Fancy Lash solves this problem and ensures that your lashes remain healthy and happy.