CarnoSyn is a patented, immediate-release form of beta-alanine. It is the standard formulation, not a sustained-release version.
Beta-alanine builds up carnosine in muscle tissue, which buffers acid during short, hard efforts. Higher carnosine levels help delay fatigue in activities like sprinting, weightlifting, and interval training.
The supplement often causes a harmless tingling sensation called paresthesia. Splitting the daily dose into smaller amounts taken throughout the day reduces that sensation. Many people also take it with food to slow absorption slightly.