Ordering cosmetic products from different ';off sites'; ?

How do different websites sell cosmetic products cheaper than the manufacturer's website ?


Is it an old/faulty product ?


What's the catch ?


If there isn't any catch, how can a website sell a product cheaper than the manufacturer's website ?Ordering cosmetic products from different ';off sites'; ?
the products they sell are often seconds, they might have faulty packaging, not as much in as normal etc. hope this helps : )

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