The Kre-Alkalyn EFX difference. It’s buffered, it’s stable, and it works. Kre-Alkalyn EFX represents a major breakthrough in performance supplementation thanks to its multi-patented, 'pH-Correct' creatine stabilization technology. Our scientist discovered that “buffering” to pH-12 produced a stable creatine molecule. Kre-Alkalyn EFX is the only creatine monohydrate product with a pH of 12 because its molecules are synthesized with ‘buffering’ agents using a patented manufacturing process.