Jocelyn Pye’s hair fell to her knees before she cut 40 centimetres from the lengths on Tuesday for a friend.
The year 4 pupil at Our Lady of the Rosary Primary School in Kellyville was three when she saw a documentary on cancer patients and decided to grow her hair to make a wig for one.
She revived the idea earlier this year after befriending Morgan Bishop, also 9, who was diagnosed with acute lymphoblastic leukaemia in January.
Jocelyn said she had never cut her hair except for a trim every six weeks to keep it in good condition to donate to the Pantene Beautiful Lengths initiative, which collects hair to make the wigs for cancer patients.
‘‘It feels very light,’’ she said after the cut.
‘‘I want to keep on going [to donate again]. It grows very quick.’’
Jocelyn’s mother Bec said she and her husband Adrian had always supported her daughter’s idea, but got the ball rolling for her earlier this year when she insisted on rasing money for Morgan’s medical needs through the chop.
‘‘She was about three years old and we were watching TV and a program came on about children with cancer and she asked ‘Why haven’t the go any hair?’,’’ she said.
‘‘We were talking about how they can make wigs for them and she said to me ‘I’d like to do that Mum’.
‘‘We’ve always supported her.’’
Morgan will complete 18 months of oral chemotherapy and won’t know until 2016 if she is clear of the illness.
Morgan’s mother Samantha, of Wentworthville, said she felt overwhelmed and extremely blessed by Jocelyn’s generosity.
‘‘She’s amazing and I really hope this creates a lovely friendship between the families.’’