Side Effect Sports Nutrition, or more commonly known as SES Nutrition. Originally released their protein powder Prime Protein, in a 30 serving 2lb tub with five flavors, chocolate, strawberry, vanilla, banana, and mixed berries. While it’s menu was of course a highlight, launching with that many options. The brand’s biggest push for the supplement was it’s 23g of hydrolyzed beef protein isolate, as there were and still are very few beef protein formulas. Regardless of whatever Prime’s initial strategies actually were, SES have seen enough success to produce a 60 serving 4lb variant of the product, which is slowly beginning to show up in stores. Currently only four of the original 2lb tastes can be confirmed for the double size can, but for those willing to pass on mixed berries. SES Nutrition’s 4lb Prime Protein will end up saving you about 15% compared to the value of two regular 2lbs.