Are there boundaries to how we like our "natural beauty"? It seems everywhere you go, there are ads touting the idea that women should embrace their natural charms. But is there a limit to all that naturalness? What about armpit hair? Photographer Ben Hopper's photo series "Natural Beauty" attempts to find out.

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Hopper started the series in 2007 as an attempt to challenge the "brainwashing" around women's body hair. He just released the first official collection of photos, which capture a series of women proudly displaying their body hair.

"The whole point [of the series] is contrast between fashionable female beauty and the raw unconventional look of female armpit hair," Hopper said. "I expect [the photos] will surprise a lot of people and I guess, in a way, that is one of my intentions."

What do you think about armpit hair? [Huffington Post]