You know the State Farm commercial where the woman says "You can't say anything on the Internet that isn't true"? We laugh, because obviously there's an infinite amount of baloney circulating online. We take everything we read on the interwebs with a boulder of salt.

Of course, that doesn't seem to stop people from believing -- and passing around -- such timeless beauty treatment myths as "toothpaste is great for zits" and "beer will make your hair shiny." A few have enough science to at least somewhat back them up, but others ... not so much.

Out of curiosity (and service to our dear, faithful audience), we tried out some of the most outrageous at-home beauty treatments we've ever heard of: laxative face primer, mouthwash pedicures, and more. See our final word on whether these at-home beauty remedies work ... or if they're just another load of Internet hooey.

Tester: Dawn, NYC editor

A beer rinse is supposed to make your hair soft and shiny -- the malt has smoothing properties, and the yeast strengthens and volumizes. To test it out, I brought a bottle of Bud Light (sorry, I didn't have any microbrews on hand) into the shower, and, after shampooing, poured half of it over my head. I was immediately transported to a frat basement circa 2001. I massaged the beer in for a few minutes, rinsed it out, and then conditioned as usual. Thankfully, the conditioner masked the beer smell.

Then, I blew my hair dry using a round brush to get a real sense of the results. While my hair was shinier than usual with a touch more volume, it was difficult to brush through it, and it felt a little crunchy to the touch. I don't think I'll be doing a beer rinse again, but I gave it the old college try (har har).

Tester: Sarah, senior editor

There's a trend going around the beauty vlogger world that involves using milk of magnesia laxative as a face primer. Apparently milk of magnesia has been used for years to help control oily skin -- but I've got to admit, slapping laxative on my face kind of weirds me out.

I put it to the test by applying the laxative to the right side of my face and my usual Laura Mercier primer to the left side. The laxative felt a little sticky at first but it dried after a few seconds. The shocker, though, was when I applied foundation on top. The laxative side looked smoother than the traditional primer side and my pores completely disappeared. Very impressive.

Over the course of the day, I'd say the two primers worked about the same in terms of oil-control and helping my makeup stay put. I'm still not totally sure I want to add a bottle of laxative to my makeup bag, but if you've got some lying around or don't want to spend money on a traditional primer, it's worth a try.

Tester: Colleen, executive editor

First things first: Don't start a conversation with a stranger in line at the drugstore when you have hemorrhoid cream in your basket. It makes for a very awkward, please-pretend-you-didn't-see-it moment when you're checking out. Now, about using Preparation H as a poor girl's cure for puffy eyes: In the name of research, I stayed out late and drank waaaay too much so the skin under my eyes would look properly swollen and overworked.

In the a.m., I smeared a baby pea-sized dab of the anti-inflammatory hemorrhoid cream under my eyes. It contains 1 percent hydrocortisone, which should reduce some of the swelling, and it did. I guess. But I've gotten the same results from a cold compress or pair of cucumber slices on my eyes. And when you're sleep-deprived, trying to put hemorrhoid cream near your eyes is a really terrible idea -- some of those ingredients will cause worse problems than puffiness if they get in your eyes.

Final verdict: From now on, I'll buy embarrassing products online. And eat more fiber. And get more sleep. But I'll never put hemorrhoid cream on my face again.

Tester: Claire, editorial intern

Soaking your feet in Listerine is rumored to soften calluses and freshen your worn-out feet. We'll see about that. I used a bottle of Cool Mint Listerine and soaked my feet in a small basin for about 10 minutes. After soaking, I noticed my feet felt refreshed and well, like I had soaked them in Listerine, but as far as softening goes, I didn't notice too much of a difference. I probably could have been more patient and soaked them a little longer, but if I need a fast fix for rough feet, I'll just reach for a pumice stone.