As always, HeadBlade has some kick ass customer service and response time. Here's the email I got from Mac:Hi Tyler,In the past year or two we did make a manufacturing change to HeadSlick by removing all parabens. Given the amount of research linking parabens to cancer we felt it was a necessary change. I am surprised that some of your guys are having trouble with the newer formula. I keep samples of each production run and the appearance is consistent. I don’t see any reason why they may have experienced pimples when using Slick either as we did not add anything to the product that may cause a reaction. You can feel free to offer my personal email (Mac@HeadBlade.com) if anyone would like more information about the change or problems they may be having. If you have any questions please let me know.Mac McCloskeyOperations ManagerHeadBlade, Inc.Todd also followed up to say that it would be best to provide the Lot Number on the bottom of the bottle if you write Mac as this will help him pinpoint things easier.