The most recent supplement revealed by Muscletech for their Essential Series was number 21, the line’s fifth protein powder Platinum 100% Beef Protein. The product was first previewed by an international distributor, and has not been seen since. The brand have now some what hinted at why we may not see it on American shelves with an image promoting the beef formula for international Muscletech fans. While some may be a little disappointed in the non US availability if that is in fact the case, the move would actually not be too different from what we saw from the brand earlier in the year. Back in January a new Performance Series supplement was unveiled, the isolate protein powder ISO-Zero. Despite there being an Essential product out now with the same name, the Performance formula is indeed an international exclusive. Whether or not this is the deal with the 21st Muscletech Essential, we don’t know. But it is the only supplement previewed after the line’s Arnold Classic appearance and official release, to not be listed on the brand’s website.