This Review Title is Not sure but read a comment about the color of ... and the content is: Not sure but read a comment about the color of the serum. Mine is brown too. What color should it be? Anyways just received and have put on my face for first time tonight..... Can someone answer me about the color?.There are other information for this review, one is This reviewer did purchase it and the other is 1 people think this review is helpful.