About lvl enhance your natural lashes by adding length volume and lift lvl stands for length volume and lift the stunning alternative to eyelash extensions lvl has been designed to enhance your natural eyelashes by straightening them rather than curling to create the illusion of longer thicker lashes the treatment takes between 30 and 45 minutes depending on the length and quality of your natural lashes no adhesive or lash extensions used no mascara needed lasts up to 6 weeks