THE BIG PRIME LASH PRIMER The unique blue shade preps your lashes to amplify the effects and color intensity of your mascara. Infused with ingredients known to condition, the unique blue shade preps your lashes for larger-than-life volume and amplifies the effects and color intensity of your mascara. Blue Boost! Infused with ingredients known to condition, the unique blue shade preps your lashes for larger-than-life volume and amplifies the effects and color intensity of your mascara.