In our celebrity-obsessed culture, we put stars on pedestals and think they can do no wrong. GOOP-y Gwyneth becomes a self-professed expert on everything from diet and health to outrageously expensive tee-shirts, Snooki offers up weight loss tips and we're always reading about what makeup products celebs (no matter how D-list) keep in their handbags.

Guess what? Being famous for acting, singing or doing shots doesn't make you an expert on anything but acting, singing or, well, you get the drift.

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That's what makes this compendium of actress-proffered beauty tips so amusing. Styleist compiled a bunch of celebrity beauty blunders that make for a good chuckle.

For instance, both the aforementioned GOOP and model Giselle Bundchen don't think there's anything wrong with spending unprotected time in the sun. About SPF, the model famously said, "I cannot put this poison on my skin. I do not use anything synthetic."

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Snooki's little gem is a doozy. In her best-selling (how is that possible) book, "Confessions of a Guidette," the diminutive new mom revealed that she's used kitty litter as an exfoliant. Why she'd choose that over, say, salt or baking soda if she didn't have an actual exfoliant handy is mind-boggling.

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Sandra Bullock, like many of us, buys into the "Preparation H" for reducing undereye swelling, but there's been zero scientific proof that this hemorrhoid cream really works for anything other than what it's intended for.

And, perhaps the biggest gaffe of them all comes to us courtesy of Taylor Swift who admits to the following; "I once used a Sharpie as eyeliner in an airplane bathroom because I didn't have any with me." Aack. Not too swift of an idea.

So, remember, celebrities might be pretty to look at on screen or stage or magazine cover but that does not make them bastions of what's good and true in the beauty (or any other) realm.