Pierce Brosnan believes Irish diet is the secret to his good hair

Pierce Brosnan believes Irish diet is the secret to his good hair Pierce Brosnan thinks that "potatoes" and "Guinness" allow Irish men to have such enviable hair. 16 August 2025 Pierce Brosnan credits "Guinness" for his enviable hair. Pierce Brosnan has shared his theory about why he has luscious hair The 72-year-old actor explained his dietary theory as to why Irish men have luscious locks when asked how his own mane looks so good and noted that his father Tom "had good hair". Speaking to Page Six at the premiere of The Thursday Murder Club, Pierce said: "I don't know.