Ben Nye, Sr. pioneered Silver Grey Hair Color and it still has the right balance between silver and gray, appearing realistic for stage and film. The original Ben Nye age hair color presents a realistic silvery-grey age tone with subtle metallic highlights.Apply with a toothbrush, and style easily without stiffness. Avoid use on chemically treated hair. Protect costumes during application.Expect 3-10 applications per ounce. 16 fluid ounces per bottle.