Ageless Tina O'Brien has spilled her beauty secrets at last after fans told her she barely looks any older than she did as a teenager on the Coronation Street cobbles. Tina, 42, often gives fans a glimpse into her life on social media, and now she's answered the question we've all been asking. The actress, best known for her portrayal of Sarah Platt, first joined the soap back in 1999. Since then, she has tied the knot and welcomed two children - Scarlett, 16, who she shares with ex-boyfriend