A COOLANGATTA model will sacrifice her luxurious long locks on Monday to make life a little more bearable for one young girl who has lost her hair.

Amy Jarvis plans to donate her hair for use as a wig for a child suffering from alopecia, a medical condition causing people to lose their hair permanently.

There is no known cause or cure for the condition, and unlike hair loss caused by cancer treatment, the hair never grows back.

But she doesn't plan to stop at just one child. Miss Jarvis hopes others will sponsor her efforts to raise funds for other children needing wigs.

For kids with alopecia, the wigs make it possible to have a normal childhood as they feature a unique suction device that allows them to go swimming and play sport without the wig falling off.

"I've always had long hair and just couldn't imagine going through school with my hair falling out or no hair at all," Miss Jarvis said.

"When I heard that I could donate my own hair to be used to make wigs for these children, I decided I would get the chop.

"If my hair can change a child's life by increasing self-esteem, then consider it done."

Up to 19 ponytails are required to make just one wig, and each one costs around $3000.

Many hours work goes into the production of each wig and they can last years.

All money raised will be donated to Variety, a children's charity that funds human hair suction wigs for children.

Variety's mission is to enrich, improve and transform the lives of seriously ill, disadvantaged and special-needs children.

To donate, visit www.gofundraise.com.au/page/AmyJarvis.