If you're having a difficult time choosing between a fish pedicure and a snake massage, China offers a happy medium with full-body eel baths. Instead of getting your body exfoliated with sugary scrubs, clients are submerged into a tank full of pencil-length eels. Their job: to nibble away dead skin cells to leave the bather with smoother, softer and more radiant skin.

One major downfall to this treatment: You can't control where the eels decide to wander. One man in China bathed with the mini exfoliators, only to have an eel settle in his kidney (by way of his genitals), leading to severe pain and a three-hour operation. He's fine now, though no word on if his skin is any smoother.

When watching period dramas, we can't believe people ever thought bloodletting was a good idea for curing illnesses. More ridiculous than letting leeches suck your blood for vanity? Debatable, but the beauty treatment that promises to increase blood circulation has Demi Moore on its side at least.

Contrary to popular belief, leeches aren't just takers -- they're also givers. While sucking your blood like a Cullen, medicinal leeches also secrete a powerful saliva that contains about 60 different proteins, some of which stop blood clotting, dilate blood vessels, and decrease blood pressure. In short, they do improve blood circulation. Better blood flow means your skin is better equipped to flush out lingering toxins and dead skin cells, so you get rid of blotchiness, dark circles and itchy flares and are left with a healthy glow -- like you just stepped in from a brisk walk.

And as cringe-worthy as it sounds, magical leech saliva is also thought to contain an anesthetic, making the whole process virtually painless, albeit semi-disturbing.

Fortunately, the treatment involving the largest animal on our list has nothing to do with excrements of any sort. As extremely intuitive animals who can sense energy and even mirror the feelings of humans, horses have long been turned to as a means of helping individuals suffering from depression, dementia and even those undergoing drug rehabilitation through the practice of equine therapy.

Now, equine therapy has become a spa treatment in lieu of relaxing massages and facials. Instead of lying on a massage table surrounded by lightly scented candles, clients relax upon a bed surrounded by horses that, say proponents, will clear energy blocks in the body through snorting, sniffing and sometimes relieving themselves in your vicinity (I guess some excrement is involved.) A typical equine session can take anywhere from 20 to 90 minutes -- the horses determine the duration of your session and when you're ready to walk away, feeling more emotionally sound ... which can do wonders for your health and your skin.