this review title is: my serum was pale yellow and the content is: based on all of the positive reviews i was excited to try this serum but when i received it it was a pale yellow that is a key indicator that the vitamin c is past its freshness date i used it a couple of times and really saw no difference so i returned it no reason to pay for a product that may no longer be effective i bought an alternative product.there are other information for this review, one is this reviewer did purchase it and the other is 0 people think this review is helpful.