One of them is his beloved grandfather, Po, who is having chemotherapy and radiation treatment for lung cancer.

In February, the Tighes Hill Primary student took part in Surfebruary, catching a wave every day to fundraise for cancer research.

He raised more than $12,000 for the Chris O'Brien Lifehouse in Sydney and the experience got him thinking about what else he could do.

The result is Good.X.Karma, the online business he launched in June and runs with the help of his parents, Emma and Ben Neil.

Good.X.Karma sells soap and lip balm that Xavier makes, with the help of his mum, using some craft kits he received at Christmas.

The passion project is growing, so too its stockist list. Good.X.Karma is found in local stores including Doughheads, Newy Burger Co (owned by Mr Neil), Rip Curl, The Sherwood, Brewtales, Mitch Revs, at A La Mode's Love Local popup at Charlestown Square, Lone Clothing Co, Tiffany Jane the Barber and Muster Point Collective, and Inspired Traders, co-owned by Mrs Neil, who has two OPSMs.

"It's doing really well to the point that we've tripled how much product we've had to order [to make it]," Mrs Neil says. "There is no profit in it. It's all for charity. We take out our expenses and anything from a profit point goes back to Chris O'Brien Lifehouse."

It takes about 20 minutes to prepare the hand soap brew and another 20 minutes to pour before it is left to set for 24 hours.

Xavier decided it was cooler not to stir it - the result being a marbled soap he named Beachside Boardwalk.

"It smells like a fresh ocean breeze, the wind off the ocean," he says. "The most exciting bit is unwrapping them from the moulds."

The balm is a coconut and mint flavour, its ingredients including coconut oil, sweet almond and bees wax: "I ate some of it when we made it," Xavier admits as his mum explains he "wanted a man scent, not something girly".

Xavier might expand the range and has another business idea, inspired perhaps by his mate Revs: "I'd like to paint art," he says.