New Zealand magazine Cleo is under pressure to stop airbrushing photographs, and a petition against the practice has collected more than 18,000 signatures.
Jessica Barlow, from Melbourne, started the protest believing that altered images of models were sending the wrong messages to vulnerable teenagers.
The 20-year-old's protest, called the Brainwash Project, is aimed at the Australian and New Zealand versions of the magazine.
"Cleo is a starting point. I chose them because they were a magazine that I read the most when I was a teenager and I think it would be really great to see them take the lead on this issue," Miss Barlow said.
"Hopefully they'll mirror whatever happens here in Australia in the New Zealand issue."