Every day for a month, Julia Scott sprayed herself. In every spritz were 20 million bacteria.

Scott took brief, three-minute showers without soap, shampoo or deodorant.

It was all part of the writer's assignment for New York Times Magazine. For her story, she was trying AO Spray, a brand new product containing bacteria the makers say our ancient ancestors were covered in.

AOBiome, the Cambridge, Mass.-based biotechnology company, behind AO Spray claims the bacteria might make a person's skin soft and moist and less smelly.

"I was afraid of sitting down next to someone on a crowded bus and having them gag," Scott said in an interview with ABC News.

The man who invented the spray, David Whitlock, says he hasn't showered in 12 years.

"You stop missing it and it gives me a little extra time every day because I don't have to shower … our ancestors never bathed," he said.

Asked whether she noticed a difference in her skin, Scott said that she did.

"My skin became more soft to the touch and I noticed that my face, which is prone to hormonally-related break-outs, did clear up," she said, but she can't say for sure whether it was because of the spray.