Tarte's Opening Act lash primer creates a flawless base for mascara. The unique formula works to separate, lengthen, and define each lash for enhanced volume. With plant-based conditioners, this primer nourishes lashes, promoting healthier and fuller-looking lashes. The 360° magniLASH brush ensures every lash is coated evenly. Achieve maximized mascara performance and a truly eye-opening effect.