Isabella Beaumont's classmates will hardly recognise her when she returns to school after the holidays.
The six-year-old has been growing her hair for as long as she can remember, but she is about to offer her long blonde locks to help make life a little easier for cancer patients.
Isabella's hair will be used for wigs as part of the Pantene Beautiful Lengths program, which gives real-hair wigs to women who have lost their hair through treatment.
The Newman College pupil decided to donate her hair about a year ago after a report on television about a woman who did the same.
One of her mother's friends, who has battled bowel cancer for three years, added to her motivation.
Though Isabella admits it will take some time to adjust to her new haircut, she is happy to help people with cancer.
"My mummy has a friend who has got no hair and we were talking to her about it at my swimming lesson," she said.
"I am happy about it but I know when it's all gone it will take a long time to grow it back again."
Isabella's hair will go from 45cm to just under her chin after she visits the hairdresser this week.
Her mother, Rowena Beaumont, said she was not surprised when her youngest child told her about her plans to donate her hair.
"Isabella has always been very thoughtful and empathic from a young age," she said.
"I told my friend about it the other week and it was very emotional."
Almost 950 people across Australia have donated their ponytails to the Beautiful Lengths campaign since it was launched in September.