My dad used Brylcreem nearly every day of his 86 years. He often joked that the reason he hadn't grown grey was that the Brylcreem wouldn't allow the sunshine through. Dad died with a full head of black hair.
1948 VITALIS vintage magazine advertisement "hello handsome" ~ with hair like this, you'll hear: "hello handsome" - Want handsome hair? You can get your hair so darn good-looking, so well-groomed that gals will gather like geese going North.