Rule One R1 Protein Naturally Flavored, Pure Vanilla - 1950 grams

As Pure as it Gets.
This protein formula is as pure as it gets. With 25g of protein and over 6g of BCAAs — entirely from intact and hydrolyzed whey protein isolates — R1 Protein helps support the recovery and growth aspirations of the most ardant muscle builders.

25g fast-acting protein
100% of protein from whey isolates and hydrolysate isolates
6g+ BCAAs