Glutathione

Also known as: reduced glutathione

FDA-approved

Last verified: October 30, 2026

At a glance

FDA approval FDA-approved 2 applications
Randomized controlled trials 151 of 2,926 publications on PubMed
Registered clinical trials 274 44 active
Adverse event reports 2,594 2,050 classified as serious
  • Glutathione is an FDA-approved drug, marketed as Bss (first approval: October 28, 1981).
  • PubMed lists 2,926 publications mentioning it, including 151 randomized controlled trials and 1,580 animal-only studies.
  • ClinicalTrials.gov lists 274 registered studies testing it (44 active).
  • FDA's adverse event system (FAERS) holds 2,594 reports mentioning it; 2,050 classified as serious. Reports do not prove causation.

Research topics

  • Oxidative Stress 47
  • Ferroptosis 21
  • Antioxidants 20
  • Reactive Oxygen Species 20
  • Nanoparticles 19
  • Antineoplastic Agents 16
  • NF-E2-Related Factor 2 9
  • Apoptosis 8
  • Mitochondria 8
  • Acetylcysteine 7

Most frequent MeSH subject headings in the latest PubMed records (English, as indexed).

Regulatory status

Drugs@FDA applications

Application Product Status First approval Sponsor
NDA018469 BSS PLUS Approved, marketed October 28, 1981 ALCON
NDA020079 METHOTREXATE SODIUM Approved, discontinued November 27, 1991 EPIC PHARMA LLC

Source: Drugs@FDA (openFDA) · verified October 30, 2026 · API query

FDA compounding safety list

Not on FDA's list of bulk drug substances that may present significant safety risks in compounding.

Source: FDA.gov — Category 2 bulk drug substances · verified October 30, 2026

Removal of a substance from a regulatory list does not mean it has been approved. A "research use only" label does not make a product safe or legal for human use.

Scientific publications

  • All publications 2,926
  • Human (MeSH) 1,022
  • Animal only 1,580
  • Clinical trials 241
  • Randomized controlled trials 151
  • Systematic reviews & meta-analyses 12
  • Case reports 59
  • Retracted 11

Counts are PubMed records that mention the peptide in the title or abstract. Categories overlap, and a mention is not the same as testing the peptide as a treatment. Each number opens the exact PubMed search. Effects seen in laboratory or animal studies may not occur in humans. A registered clinical trial does not show that a substance is effective or safe.

Latest publications

Source: PubMed (NCBI) · verified October 30, 2026

Clinical trials

Registered
274
Active
44
With posted results
33

Conditions studied

  • Oxidative Stress 23
  • Healthy 9
  • Liver Failure 7
  • Glutathione 6
  • Breast Cancer 5
  • Autism 4
  • Multiple Sclerosis 4
  • Parkinson Disease 4
  • Covid19 4
  • Type 2 Diabetes 4
  • Cystic Fibrosis 4
  • Parkinson's Disease 4
Study Status Phase Start
FEAST and HOPE: Redox PSC Pilot Study
NCT07898839 Brigham and Women's Hospital
Not yet recruiting Phase 2 Jan 2027
SPI-1005 in Adults Receiving Cochlear Implant
NCT06340633 Sound Pharmaceuticals, Incorporated
Recruiting Phase 2 Dec 2026
The Effect of Light Therapy on Cellular Energy and Oxidative Stress in Healthy Adults and Type 1 Diabetic Patients
NCT07833865 University of Thi-Qar
Not yet recruiting N/A October 13, 2026
Therapeutics for Moderate and Severe Dengue
NCT07543458 Oxford University Clinical Research Unit, Vietnam
Not yet recruiting Phase 3 October 1, 2026
Tolerability of Enteral NAC in Infants
NCT06260566 Sanjiv Harpavat
Not yet recruiting Phase 1 Oct 2026
Understanding Lifespan Trajectories of Social Cognition, Brain Microstructure and Iron Dysregulation in Schizophrenia
NCT07856381 Medical University Innsbruck
Recruiting — September 1, 2026
S-Acetyl Glutathione and Performance Recovery in Soccer
NCT07690124 University of Thessaly
Not yet recruiting N/A September 1, 2026
26DT052; Scaling Busulfan Dose to Body Surface Area in Children
NCT07792369 Children's Hospital of Philadelphia
Not yet recruiting Phase 1 Sep 2026
GAIP ASD Research Study
NCT07622316 Greater Atlanta Integrative Pediatrics
Recruiting Phase 1 June 1, 2026
Adia Med of Winter Park LLC Chronic Kidney Disease Research Study
NCT07572890 Adia Med of Winter Park LLC
Recruiting Phase 1 May 18, 2026
Show 40 more studies
Study Status Phase Start
Adia Med of Winter Park LLC Autism Spectrum Disorder Research Study
NCT07304440 Adia Med of Winter Park LLC
Recruiting Phase 1 May 1, 2026
Monitoring Patients With Repetitive Head Impact With Gamma-glutamylcysteine Supplementation
NCT07050173 Pravat Mandal
Recruiting Phase 1 May 1, 2026
Enrichment of Glutathione Using Gamma-glutamylcysteine Supplementation in Parkinson's Disease Patients.
NCT07064005 Pravat Mandal
Recruiting Phase 1 March 23, 2026
Evaluation of the Efficacy of Oral Tranexamic Acid and Glutathione-assisted Microneedling in Treatment of Melasma
NCT07448415 Assiut University
Not yet recruiting Phase 2, Phase 3 Feb 2026
Efficacy Evaluation Study of Vitamin C and Glutathione Liquid Sachet
NCT07379216 TCI Co., Ltd.
Recruiting N/A January 24, 2026
To Evaluate the Efficacy and Safety of N-acetyl Cysteine Administration in Patients With Diabetic Retinopathy
NCT07634991 Ain Shams University
Recruiting Phase 4 January 10, 2026
Rapid Effects of a Biofield Patch on Antioxidant Status and Cellular Energy
NCT07314359 Natural Immune Systems Inc
Recruiting N/A December 4, 2025
SPI-1005 for the Treatment of Meniere's Disease (Open Label)
NCT06859788 Sound Pharmaceuticals, Incorporated
Active, not recruiting Phase 3 October 29, 2025
Gingival Hyperpigmentation Treatment
NCT07595705 Cairo University
Recruiting Phase 2 August 1, 2025
Glucocorticoids for Acute Drug Induced Liver Injury With Hyperbilirubinemia
NCT06922669 General Hospital of Shenyang Military Region
Recruiting N/A June 24, 2025
Randomized Trial of Glutathione With Anti-PD-1 and Chemotherapy in Advanced NSCLC
NCT06896422 The First Affiliated Hospital of Zhengzhou University
Recruiting Phase 1 June 1, 2025
Comparison of Effectiveness of Tranexamic Acid Mesotherapy Versus Glutathione Mesotherapy in Post Burn Facial Hyperpigmentation
NCT07263841 King Edward Medical University
Active, not recruiting Phase 2 June 1, 2025
Effects of Brazil Nut Supplementation in Patients With Chronic Kidney Disease Undergoing Conservative Treatment
NCT06394544 Universidade Federal Fluminense
Active, not recruiting N/A March 30, 2025
Beneficial Effect of Silymarin in Ulcerative Colitis
NCT06213857 Tanta University
Recruiting Phase 2 February 1, 2025
Investigating the Effect of Diroximel Fumarate on Glutathione in Schizophrenia
NCT06957808 King's College London
Recruiting N/A January 10, 2025
Ultrasound-Enhanced Delivery of Compound TXA Solution in Melasma
NCT07202156 The First Affiliated Hospital with Nanjing Medical University
Recruiting N/A October 20, 2024
Evaluation of the Role of N Acetyl Cysteine and Vitamin D in Improving Outcomes After Corrosive Ingestion
NCT07229456 Ain Shams University
Active, not recruiting Phase 3 October 1, 2024
Identification of Serum Level of Glutathione Peroxidase 4
NCT06554392 Assiut University
Not yet recruiting — September 1, 2024
Prevent Cardiac Surgery Associated AKI Trial
NCT06620523 George Washington University
Recruiting Phase 2 July 18, 2024
GABA and GSH in FRDA
NCT07635030 Children's Hospital of Philadelphia
Enrolling by invitation — May 8, 2024
Efficacy of N-acetylcysteine in Preventing Radiotherapy-Induced Oral Mucositis in Head and Neck Cancer Patients.
NCT06354712 Mansoura University
Recruiting Phase 2 April 4, 2024
Study of N-acetylcysteine in the Treatment of Patients With the m.3243A>G Mutation and Low Brain Glutathione Levels
NCT05241262 Michio Hirano, MD
Recruiting Phase 1 July 6, 2023
Study to Evaluate ARINA-1 in the Prevention of Bronchiolitis Obliterans Progression in Participants With Bilateral Lung Transplant
NCT05654922 Renovion, Inc.
Recruiting Phase 3 April 10, 2023
F573 for Injection for the Treatment of Liver Injury/Failure
NCT05689645 Beijing Continent Pharmaceutical Co, Ltd.
Recruiting Phase 2 March 24, 2023
Trial of Dichloroacetate (DCA) in Glioblastoma Multiforme (GBM)
NCT05120284 University of Florida
Active, not recruiting Phase 2 July 1, 2022
Neuroprotection With N-acetyl Cysteine for Patients With Progressive Multiple Sclerosis
NCT05122559 Emmanuelle Waubant, MD PhD
Active, not recruiting Phase 2 February 16, 2022
Glutathione, Brain Metabolism and Inflammation in Alzheimer's Disease
NCT04740580 Baylor College of Medicine
Active, not recruiting Early phase 1 February 15, 2022
Intranasal Insulin and Glutathione as an Add-On Therapy in Parkinson's Disease
NCT05266417 Gateway Institute for Brain Research
Recruiting Phase 2 February 7, 2022
SPI-1005 Treatment in Moderate COVID-19 Patients
NCT04484025 Sound Pharmaceuticals, Incorporated
Enrolling by invitation Phase 2 October 12, 2021
Glutathione (GSH) Synthesis in Healthy School-aged Children and Healthy Young and Old Adults
NCT02971046 The Hospital for Sick Children
Active, not recruiting N/A October 1, 2020
Trial of Dichloroacetate in Pyruvate Dehydrogenase Complex Deficiency:
NCT02616484 Saol Therapeutics Inc
Active, not recruiting Phase 3 July 14, 2020
Markers of Oxidative Stress in Inflammatory Bowel Diseases: Risk Factors and Implications for a Dietetic Approach
NCT04513015 Università Politecnica delle Marche
Active, not recruiting N/A December 15, 2019
Glutathione in Mild Cognitive Impairment
NCT03493178 Baylor College of Medicine
Active, not recruiting Early phase 1 April 19, 2018
Physiological Effects of N-Acetyl Cysteine in Patients With Multiple Sclerosis
NCT03032601 Thomas Jefferson University
Enrolling by invitation N/A January 5, 2017
Dietary Cysteine and Methionine Deprivation (CMD) in Glioma Patients
NCT07553520 UNC Lineberger Comprehensive Cancer Center
Withdrawn N/A May 2026
Effect of Double Nutri® Liposomal Encapsulation Technology on Human Absorption of Vitamin C and Glutathione Liquid Sachet
NCT07302828 TCI Co., Ltd.
Completed N/A December 15, 2025
The Impact of Qualia Gluthathione+ on Blood Glutathione Levels
NCT07221955 Qualia Life Sciences
Completed N/A November 30, 2025
Effects of a Dietary Supplement on Collagen Production and Evaluation of Its Regenerative and Anti-Ageing Propertiess
NCT07521423 Marianna Kapetanou
Completed N/A October 1, 2025
Clinical Study to Assess Safety, Efficacy and In-Use Tolerability of Oziva Bioactive Gluta Fizzy Effervescent Tablets on Subjects With Facial Dark Spots Such as Pimple Marks, Sunspots, Age Spots and Uneven Skin Tone
NCT07162623 NovoBliss Research Pvt Ltd
Completed N/A September 2, 2025
The Effect of White Tea in Healthy Human Subjects
NCT07344688 Universitas Padjadjaran
Completed N/A August 22, 2025

All 274 studies on ClinicalTrials.gov ↗

Source: ClinicalTrials.gov · verified October 30, 2026

Adverse event reports

Reports
2,594
Serious
2,050
With death outcome
206

Most reported reactions

  • Off label use 163
  • Nausea 147
  • Fatigue 132
  • Platelet count decreased 131
  • Hepatic function abnormal 127
  • Endophthalmitis 126
  • Pyrexia 121
  • Anaemia 117
  • Diarrhoea 115
  • Headache 113
  • Pain 98
  • White blood cell count decreased 98

Adverse event reports do not prove that the substance caused these effects. Side effects not listed here may still occur. Reaction terms are MedDRA terms as reported to FAERS.

Source: FDA FAERS (FAERS data as of July 30, 2026) · verified October 30, 2026 · API query

FDA prescribing information

Official US prescribing information. Dosing sections are intentionally not shown.

  • Kidney Tonic I HUMAN OTC DRUG BioActive Nutritional, Inc. September 9, 2026
  • Nephroplex HUMAN OTC DRUG BioActive Nutritional, Inc. September 3, 2026
  • Glutathione HUMAN OTC DRUG Energique, Inc. September 2, 2026
  • Apizelen HUMAN OTC DRUG BioActive Nutritional, Inc. June 8, 2026
  • Free Radical HUMAN OTC DRUG Deseret Biologicals, Inc. June 2, 2026
  • Free Radical HUMAN OTC DRUG Deseret Biologicals, Inc. May 6, 2026
  • Kidney Tonic II HUMAN OTC DRUG BioActive Nutritional, Inc. March 11, 2026
  • Glutathione HUMAN OTC DRUG BioActive Nutritional, Inc. March 11, 2026
  • Hepataplex HUMAN OTC DRUG BioActive Nutritional, Inc. March 10, 2026
  • Visual Detox 6037 HUMAN OTC DRUG Professional Complementary Health Formulas January 8, 2026
  • SAMe Liquescence 3036 HUMAN OTC DRUG Professional Complementary Health Formulas January 8, 2026
  • Hepatatox HUMAN OTC DRUG BioActive Nutritional, Inc December 18, 2025
  • GLUTATHIONE HUMAN OTC DRUG HANCHOYEANBIOTEC Co.,Ltd. November 27, 2025
  • FEELSHION Dark Spot Remover Serum HUMAN OTC DRUG Beijing JUNGE Technology Co., Ltd. February 18, 2025
  • Strength M HUMAN OTC DRUG BioActive Nutritional, Inc. October 18, 2024
  • Occuloplex I HUMAN OTC DRUG BioActive Nutritional, Inc. May 8, 2024
  • BSS PLUS HUMAN PRESCRIPTION DRUG Alcon Laboratories, Inc. January 25, 2024
  • BSS PLUS HUMAN PRESCRIPTION DRUG Alcon Laboratories, Inc. January 25, 2024
  • ANTI AGE STRESS HUMAN OTC DRUG Guna spa November 2, 2023
  • Immune Support HUMAN OTC DRUG ProBLEN November 30, 2022
  • Telomere - DNA HUMAN OTC DRUG ProBLEN November 30, 2022

Source: DailyMed / openFDA

In the news

Latest headlines and official notices that mention this substance, in their original language. Third-party content, not medical advice.

  1. FDA · MedWatch safety alerts Official

    Greenwich Rx Issues Voluntary Nationwide Recall of Compounded Glutathione Due to Elevated Endotoxin Levels

All news →

Change history

No changes since monitoring began on October 30, 2026.