Creatine Monohydrate 80/200/500 Mesh (USP)とは？用途・使用量・代替品・規格

Creatine Monohydrate Powder, chemical name N-(Aminoiminomethyl)-N-methylglycine monohydrate, is a nitrogenous organic acid naturally present in vertebrates. It is biosynthesized in the liver, kidneys, and pancreas from the amino acids arginine, glycine, and methionine, and can also be obtained from dietary sources such as red meat and fish. As one of the most thoroughly researched supplements in sports nutrition, creatine monohydrate is internationally recognized as a safe and effective Class A dietary supplement. Creatine Monohydrate (CAS No. 6020–87–7, molecular formula C4H11N3O3·H2O, molecular weight 149.15) is the stable crystalline form of creatine, consisting of one molecule of creatine bound to one molecule of water of crystallization. This crystalline form is structurally stable, has low hygroscopicity, and has a long shelf life, making it the most mainstream product form in the global creatine supplement market, occupying a dominant share of the supplement market. In commerce, “creatine” typically defaults to creatine monohydrate. In the biological system, the main physiological function of creatine is the rapid regeneration of adenosine triphosphate (ATP) through the reversible conversion of the creatine kinase (CK) system with phosphocreatine (PCr). During high-intensity exercise (such as sprinting, weightlifting, and intermittent sprinting), the ATP reserves in muscle cells are depleted within seconds. At this point, phosphocreatine acts as a temporary storage depot for high-energy phosphate groups, phosphorylating ADP to ATP within milliseconds, sustaining the energy supply for muscle contraction. Exogenous supplementation of creatine monohydrate can significantly increase the total creatine and phosphocreatine reserves in muscles, thereby enhancing the ability to repeatedly output high-intensity exercise, delaying the onset of fatigue, and promoting post-exercise recovery.

The core mechanisms of action of creatine monohydrate in the human body include the following aspects: (1) Rapid ATP Regeneration: During high-intensity exercise, the rate of ATP consumption far exceeds its synthesis rate, leading to fatigue. Creatine rapidly regenerates ATP through the creatine kinase reaction, transferring a phosphate group from phosphocreatine to ADP, providing continuous energy supply for muscle contraction. Creatine has been shown to enhance explosive power, increase muscle strength, and is recommended for use in sports scenarios involving repeated high-intensity sprints, intermittent acceleration, and final sprints. (2) Cellular Volumizing Effect: Creatine has osmotic activity within muscle cells. Creatine supplementation increases intracellular water content, inducing an increase in cell volume. This cellular volumizing effect not only provides a visual improvement in muscle fullness but also promotes protein synthesis and inhibits protein breakdown by activating intracellular anabolic signaling pathways (such as the mTOR signaling pathway), exerting a positive regulatory effect on muscle growth.

Creatine monohydrate is known as the “king of sports nutrition” and the “king of muscle-building supplements,” occupying an unshakable leading position in the global sports nutrition supplement market. Its most prominent core advantages include: undisputed evidence-based medical status, excellent safety and tolerability, outstanding cost-effectiveness, excellent formula compatibility and dosage form flexibility, extensive medical research value beyond fitness, and continuously expanding global market demand.