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However, human trials are still needed to conclusively support these promising benefits

Standard oral glutathione supplements often have poor bioavailability because the digestive enzymes in your stomach can break the tripeptide down before it ever reaches your circulation

Known as the master antioxidant , glutathione is produced naturally in every cell, neutralizing free radicals, supporting detoxification pathways, recycling other antioxidants like vitamin C and E, and maintaining the redox balance that keeps cellular function healthy

doi: 10.3389/fmed.2026.1793349 Received 23 January 2026 Revised 06 May 2026 Accepted 08 May 2026 Published 01 June 2026 Volume 13 - 2026 Edited by Ploutarchos Tzoulis, University College London, United Kingdom Reviewed by Farid Nakhoul, Galilee Medical Center, Israel Mohammed Misbah Ul Haq, Deccan School of Pharmacy, India Updates Copyright 2026 Xiu, Zheng, Li, Du, Min, Pang, Zhang, Liu, Zhao, Liu and Feng