I haven’t. And I’m not about to either. There are so many fakes out there, selling the pieces for a fraction of the real price. An example would be MAC.
MAC’s a popular auction item in the makeup section. MAC pigments are quite a popular selling item too, but more of than not, the tubs of pigments aren’t being sold, just a teaspoon (or less) of it, for perhaps RM15. But how do you vouch for their authenticity? Who knows, the seller might just be selling you a low-grade makeup product, claiming it to be genuine. I certainly wouldn’t pay RM15 for a quarter of a teaspoon of powder, no matter how fancy the brand is. It’s worse if you can’t even be 100% certain you’re not being played for a patsy.
I came across this article which shows you the differences between real and fake MAC eyeshadows. It’s pretty interesting; the differences are all in the packaging, but they’re pretty subtle, so unless you’re a huge MAC fan and have purchased every single one of their eyeshadows, you probably wouldn’t even notice the difference.
This is not to promote MAC, but just for you to be aware of different fakes out there. I wouldn’t recommend buying makeup off Ebay, no matter how cheap it is. It’s your skin, your face, and you deserve better. You don’t need to have to be big brands on your skin for it to be good. High street products work wonders too, as long as you buy ‘em at reputable stores.