A global conference of plastic surgeons in Hobart has heard about the growing popularity of non-surgical procedures, including laser and botox treatments.

Australians are now spending about $1 billion a year on cosmetic surgery and treatments, and the industry is still growing rapidly.

The president of the Australian College of Cosmetic Surgeons, Dr Russell Knudsen, says the demand is being driven by baby boomers who want to reverse the ageing process.

"They're affluent, they're educated and they're living longer than ever," he said.

Breast augmentation and liposuction are still the most common procedures, but non-surgical treatments that can be performed in a lunch hour are on the up.