Get the best product at the reasonable rate
This product review sites can come in handy. After going through these you can also check with some of the near and dear ones about their opinion the different kinds of beauty products they use. and you will be surprised to find that their opinion is not much different from those on these websites where you found those reviews.
So coming to the question as to why reviews for the beauty products matter, you can say that by going through them you can know which products are good and which are not. You can know the price difference between the different products. There are some products that just demand high prices in the name of quality but you can find similar products of the same quality charged reasonably that is affordable to all pockets.