INFLUENCER Lydia Millen has revealed the secret behind her incredible hair – a £7 hair oil. The 34-year-old told how her hair had grown inches in just two months thanks to the rosemary infused product. Showing off her stunning locks, Lydia, who cut four inches off her hair last year, said: “I take hair supplements and started using a Rosemary oil after being influenced by TikTok as well and shampoo and conditioner focused on hair growth.