Enhance lashes with butter londons fitlash primer a blue tinted conditioning lash primer to boost the benefits of your favourite mascara fortified with rice bran wax meadowfoam seed oil and wheat amino acids the formula nourishes and strengthens lashes whilst adding definition and increased fullness for bigger bolder results coats and lifts from the root to lengthen separate and thicken lashes with a clump free finish ophthalmologist tested