Sienna Miller has lifted the lid on her skincare routine and how she reversed damage to delay signs of ageing – including using a £1,999 laser device.

The 42-year-old star shared with Harper’s Bazaar in an interview and revealed what’s in her beauty bag. She admitted feeling “envious” of younger people who are taking care of their skin. 

She said: “People now are so clued up on taking care of their skin but when I was in my 20s, we’d just sort of go out all night and grab a wet wipe on the…