Size: 0.16 oz / 5 mlBlack Lash Primer delivers the ultimate base of lash fullness and thickness while finishing your mascara with a true black finish – without the use of harmful carbon black. Pentapeptide-17 encourages new lash growth for thicker, longer lashes over time, while enriching vitamins and nourishing ingredients condition and protect lashes. Prior to applying mascara, build as many coats as desired within 30 to 60 seconds to immediately thicken and lengthen lashes.