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Abstract The aim of the present study was to assess the efficacy and safety of glutathione (GSH) for the treatment of Parkinson's disease (PD)

(5) It was suggested that Epithalon may inhibit the synthesis of MM-9, which usually increases with time, and increase the proliferation and cellular regeneration process, which usually decreases with time

Taurine , an amino acid abundant in the body and in energy drinks, surged after a 2023 mouse study tied it to longer lifespan, but a 2025 analysis found it does not reliably decline with age in people and a meta-analysis found no cognitive benefit

While many uses remain "off-label," clinical interest focuses on their ability to act as targeted biological messengers for specific systems