Lash Building Primer Lash-conditioning undercoat boosts the benefits of Clinique mascaras. Unique polymer combination holds mascara to lashes for a longer, fuller look and extended wear. Moisturizing formula helps condition and mend dry lashes. Ophthalmologist Tested. Lash Doubling Mascara Magnifies lashes to twice their size. Thickens them to maximum volume. In minimum time. For bigger, better lashes. Size: Extra Large. How To Use Begin at lash roots. Wiggle brush so lashes get between the bristles. To apply to lower lashes, hold wand vertically. Do not pump brush in container as this adds air that can dry out the mascara. To prevent clumping, let mascara dry between coats. Remove with eye makeup solvent. may say 'not for individual sale.'