L-CarnosineCAS：305-84-0

Versatile Biological Activity and Tissue Distribution

L-Carnosine (β-alanyl-L-histidine), a naturally occurring dipeptide, is endogenously present in numerous mammalian tissues—with notable concentrations in the brain, skeletal muscle, and kidneys . Beyond its widespread tissue localization, this bioactive compound executes a spectrum of essential physiological functions, ranging from cellular homeostasis regulation to tissue protection, underscoring its versatility in supporting biological systems .

Metal Chelation Capacity

Functioning as a potent endogenous chelating agent, L-Carnosine exhibits high affinity for transition metal ions including copper (Cu²⁺), zinc (Zn²⁺), and nickel (Ni²⁺) . By forming stable coordination complexes with these metal ions, it effectively modulates their bioavailability, prevents aberrant accumulation, and helps maintain systemic metal ion homeostasis—thus mitigating the risk of metal-induced oxidative damage or metabolic dysregulation .

Health-Promoting Effects

This bioactive dipeptide contributes comprehensively to human health, with pronounced benefits for muscular and neurological function . In skeletal muscle, it supports contractile performance, delays fatigue during exertion, and aids in post-exercise recovery by regulating intracellular pH and buffering lactic acid accumulation . For neurological health, it promotes neuronal integrity, supports synaptic function, and may play a protective role against age-related cognitive decline, leveraging its multi-targeted biological actions .

Antioxidant Properties and Cellular Protection