Sinead Parker of Sunbury is getting ready to lop off her locks for cancer in coming weeks.

When Sinead (pictured) was just 16, her high school boyfriend was diagnosed with leukaemia.

She was by his side as he underwent treatment but he lost his battle just one week before they were to start year 12.

This year, Sinead has decided to honor him by shaving her head as part of the World’s Greatest Shave weekend, from March 16 to 19.

The now 24-year-old said she wanted to take something positive from her difficult experience.

“I’ve seen loved ones go through cancer, and I want to help in any way I can,” she said.

“It’s about showing support to those who have a blood cancer and the families who are going through the treatment with their loved ones. I know first-hand how hard that is.”

Sinead has a goal of raising $5000 for the Leukaemia Foundation in support of services and research into blood cancer. She will shave her head at her home in April and auction off the job of wielding the clippers to the highest bidder.

“I’ve got so much hair, and it takes me half an hour to do everyday, so I’m looking forward to sleeping in every morning.”