After entering the body, β-Alanine typically has a half-life of around 25 minutes and reaches peak plasma concentrations after 30-40 minutes, returning to baseline levels within 3 hours. Compared to histidine, β-Alanine exhibits a lower catalytic constant (Km) for carnosine synthase, making it a key precursor that directly influences the rate of carnosine synthesis in the body. Carnosine contains imidazole groups in its structure, and its acid-base coefficient (pKa = 6.83) is closer to the physiological range, making it more readily activated during high-intensity exercise, leading to the following effects:

• lactate degradation, acid-base regulation, and prevention of muscle acidosis;
• release of regulatory factors to promote energy metabolism;
• enhancement of athletic performance;
• strengthening of immune function and antioxidant capacity.

Applications

Nitric oxide boosters
(in beverages)

Sports beverages

Synthesis of vitamin B5