ON THE RISE LASH BOOSTER 0.3OZ. Benefits: Intense eyelash enhancer infused with castor oil. With a grey-black formula, this booster increases the intensity of black mascara & natural lashes, making it great to wear alone to condition and prime lashes or under mascara for a big lash boost. This lash primer will make your lashes feel smooth and conditioned. Boosts your mascara's potential with more volume, lift & length. Use before the fan-fave On The Rise Volume Mascara for more length, thickness, and volume. Cruelty free. Key Ingredients: Infused with castor oil, this lash serum will make your lashes feel smooth and conditioned. :