The MCoBeauty XTENDLASH GROWTH SERUM MASCARA is a cutting-edge mascara that works a double shift in stimulating lash growth. This intensely pigmented, potent mascara supercharges lash length thanks to its Acetyl Tetrapeptide-3 infused formula. Lash health is nourished while density is increased and sustained thanks to Betaine and Resurrection Plant Extracts, providing long-lasting treatment as you wear. The simple, tapered brush ensures the serum style formula coats each individual lash with just the right amount of product.