I am a cosmetics distributor for some EU countries and some none EU countries. Well you need to register every cosmetic you are planning to inport that is a serious elaborate which costs about couple of thousands euros per product.(includs, CPNC, Safty data sheets, INCI, and much different info about it which you usually can get only by producers, it doesn't matter if somebody had already done it for the same product, this certificates cannot be transferred from one company to another, they are exclusive, basically they will tell you-you didn't do something right a 1000times unless you hire a professional to do it which will cost you like I have said, a couple of thousand euro per product.)
BUT there are ways obviously. But this is a grey area market which is wort of billions. It is called parallel distribution and apparently EU consumers protection organisation did a couple of presidents on court which makes it semi-legal. But certain brands have found their ways to stop it, or at least to control it. If the product is produced for some other market outside of EU, it cannot be sold in the EU, and also the brands use their copyrights infringements against their brands. How exactly, I don't know, Google it. To cut the crap, there is a huge business of removing the labels or the content outside the bottles and importing it separately and then sticking it back. Or simply a cheap counterfeits. The best way to get the goods is to do research on its distributors and sales managers and their contracts, then when you know they do not satisfy targets, or if they increase the sales they will get bonus/discount, ado them to sell you some at their price(withot the margins) than you sell it on line.... Or find guys who are doing that with a huge about of brands and resell them to e commerce sites, which basically sell the stuff from their stock for small percentage. Remember it's a penny business, but the largest companies are worth of billions. But for that seems to me is too late since I dont know almost anything about it in order to pull it of even thou I do know the ppl who runs such a business... But why should they give you any info on that so that you become their competitor... This is about it what you can found out without paying for info or giving a share.