Jane Iredale Purelash Extender & Conditioner - Provides a much-needed step towards unbelievable lashes. When used to prime lashes for mascara, Jane Iredale's Purelash Extender & Conditioner adds measurable thickness and length and allows you to use less mascara. A single coat of this revolutionary formula before applying mascara will help strengthen, lengthen and thicken your lashes, making the mascara twice as effective. Algae Extract conditions and protects lashes. Allows lashes to grow to their fullest potential.