Below is a list of places you can buy authentic discontinued MAC products on Ebay. MAC has a naughty habit of offering up a fabulous item — only to have it taken away in the blink of an eye. From a business standpoint, I get it — it keeps the company thriving and on their toes, but it SURE is frustrating when you can’t find your favorite blush anymore. Don’t fret! There are still ways to find what you’re looking for. Despite being surrounded by fakes and dishonest people on Ebay, there are some sellers out there who will not screw you over and will send you the real thing.