Optimum Nutrition have released an image of what is being called the Pro Series. The picture features two rebranded supplements, Pro Gainer and Pro Complex. As well as Pro BCAA, and in another Pro Series preview, Pro Booster and Pro Joint. For now not much has been said about the contents of the products except for what can be seen in the image above, and the one floating around with five formulas. While the pictures for Pro Booster and Pro Joint are not exactly clear, we are going to take a guess and say they are a muscle builder and a joint support supplement. As for Pro BCAA it is also quite clear in it’s name with confirmation of 20 servings, a tub weight of 390g, and 8g of BCAAs per serving. The other two Pro Complex and Pro Gainer, as mentioned are already a part of Optimum’s range. So we are going assume that along with the attractive rebranding the two have received, they will also get a few tweaks. We only say a few due to the fact that on the face of both formulas there are some details identical to that of the current versions. Optimum Nutrition have yet to say anything about when the Pro Series is set to arrive, or for that matter if they are all coming at once. But with the Arnold Classic right around the corner, it would not be out of character for Optimum to launch something at the event.