packaging, posting cosmetics?

Hey guys,   I have a few brand new concealers I want to throw up on ebay,    the concealers themselves are  the size of a felt tip pen about 10mm in width,  but the boxes they come in take the dimensions to about 25mm.  So of course i could post them cheaply with stamps or put them in a sachel and the buyer would have to pay around 6.60 or something in postage.        Is it common practice to just take some things out of the box to ship them.   Im sure if the buyer knew they were paying 6 bux in postage otherwise they wouldnt care if it came out of the box;  however I dont want to send something without its box for fear that  it now is no longer a brand new item,  and of course buyers who dont understand about postage rates may wonder about the box.      I havent bought cosmetics online for a while now so i cant remember how they came packaged.


Any ideas?