“While Joey was snipping away the idea came to her of doing some good with it rather than throwing it away. She mentioned it to Joey, who thought it was a brilliant idea.”
A royal aide collected the hair and sent it to a charity, thought to be the Little Princess Trust.
The source added: “It was sent using someone else’s name, so that the trust didn’t know it was from a royal source – they just thought it was from a female donor in the Kensington area.
“It’s lovely to think somewhere a little girl is happily wearing a wig made from a real princess’s hair.
“It’s a very heartwarming thing for Kate to have done, and very thoughtful to use hair that would have otherwise just been thrown away.”
The Little Princess Trust was set up in 2005 by the parents of Hannah Tarplee, who died at the age of 5 from a cancerous tumour.
It has now provided over 15,000 wigs to children and young people with hair loss, as well as invested £23 million in childhood cancer research.
