Bests & Worsts Reviews from Amazon

THIS COMPANY EITHER HAS QUALITY CONTROL PROBLEMS WITH THEIR VITAMIN C SERUM OR IS NOT SELLING WHAT THEY PROMISE. Here's why: I used Whatman pH test paper to determine the Cosmetic Solutions' serum's pH level immediately after receiving it. Surprisingly, it tested at a shocking pH level of 0 which is way too acidic to put on anyone's skin....yet the company promises a pH level of 2.3 to 2.5 which would be appropriate and effective. (Rest assured, Whatman pH test paper is a very reliable, foolproof way to make a pH determination that chemists use in the lab.) BE CONCERNED! The pH level of a Vitamin C serum is critical to determine if you are using a beneficial serum or not and any inquiries to Cosmetic Solutions through an email will confirm this. (You can do a Google search, as well; there are lots of great skin care websites to help you better understand what constitutes an effective Vitamin C serums for the skin.) Interestingly, if you send Cosmetic Solutions a friendly email to inquire about their product's pH level, they will tell you their product has a desirable pH level of 2.3 to 2.5 and why this is a critical range to be effective....yet it failed to pass their own perimeters of what they promised when I tested it. In addition to this important concern, their customer service is horrible. For starters, you cannot return their product (which is included in their Amazon product description). Naively, I had hoped that they would rectify the situation with my serum after I shared my test results and concerns. After numerous emails with them over this pH issue, they did not offer to refund my money or replace it with a new bottle. Absolutely nothing; they just dropped correspondence with me after a few weeks. Now, I am out $40 and have a bottle of Vitamin C serum that I dare not put on my face because it is too acidic for human skin. So what are the options if you take a pass on the Cosmetic Solutions' product? Either mix your own serum (there are plenty of websites that can walk you through the do-it-yourself process and save you money) or you can buy the more reliable but expensive Skinceuticals Vitamin C serum. Edit on 12-19-2013: I now see that this company DOES accept returns. This is a change in their policy since my original comments were posted. This is a welcome change. If they had not ignored me or allowed me to return the bottle I purchased, I certainly would have taken advantage of that. Unfortunately, they did not... and they still have not reached out to me which is something that companies who sell on Amazon can opt to do through their sales here. Waiting to hear from you, Cosmetic Solutions!!!