Jess Happ vowed to help others when she was in the United States 12 months ago undergoing treatment for a range of allergies.
The Warrnambool schoolgirl told her parents Cameron and Melissa she wanted to grow her hair so she could donate it to the Cancer Council for cancer patient wigs.
"I want to raise money so the scientists can find a cure for the people who have cancer," Jess said.
"My poppy had cancer and it was fixable but my dad's friend, Uncle Chuckle, his cancer wasn't."
The St Joseph's Primary School year one students has a goal of raising $500 for the Cancer Council and hopes her golden locks will make a difference for cancer sufferers.
"People with cancer might feel left out because they have no hair," she said.
"Now my hair will go to them in wigs.
"I want to kick cancer in the butt."
Mrs Happ is delighted her daughter has decided to give back in this selfless way.
"I'm very proud of her," she said.
"She's got a good heart and it's good to see she cares."
Jess will have her long hair cut at the start of December at Bonnie and Clyde hairdressers.
The Happ family has created an Everyday Hero account to receive donations and will be raising funds until the end of November.
To donate head to shave.everydayhero.com/au/jessies-haircut-for-cancer
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