Many manufacturers of luxury cosmetics have a problem with their fakes. When you also like cosmetics, which are branded and exclusive, be careful, because you often can hit on counterfeit products, which have much lower quality, and may even be dangerous for your skin.
First of all, buy luxury cosmetics only in trusted stores - those that have many satisfied customers and at the same time positive feedback. Then you have the confidence that you will receive the original product. This applies to both chain stores and the internet stores. Unfortunately, it's often very easily come across a fake on the internet, so watch out for different occasions when the price is extremely low. Also, do not buy cosmetics from people on internet auctions – always check their feedback and bigger and trusted prefer stores.
Many different guides posted online will help you in recognition of non-genuine product. You can see, what to look for when you want to buy perfume, an eye shadow or a cream, which was produced by well-known brand.