Optimum Nutrition started teasing the coming of their new Pro Series with a preview of three supplements, Pro Gainer, Pro Complex, and Pro BCAA. In some pictures two other products have also been seen, Pro Joint and Pro Booster. Of the group as most Optimum fans will know, two are already a part of the brand’s line up, Pro Complex Gainer and Pro Complex. Suggesting that they are either going to be reformulated, or reintroduced with some new branding. We can now tell you that for Pro Gainer it does appear to be the latter, as the mass protein’s facts panel has surfaced but with absolutely no changes to it. The only reason we can actually tell it a part from original, is because it comes attached to the updated label with the shorter title Pro Gainer, instead of Pro Complex Gainer. To make the relaunch of the supplement even less interesting, we can confirm that Optimum Nutrition are carrying over all four flavors of the product, banana cream pie, double chocolate, strawberry cream, and vanilla custard. The one area we are unsure on is sizes, as the relabeled Pro Gainer has only been spotted in the 14 serving tub, not the bigger 28 serving bag. If you would like a look at the Pro Series mass protein for yourself, just in case you think we missed something. We have uploaded the double chocolate facts panel below.