For research use only. Not for human consumption. Not medical advice — consult a licensed clinician.

Immune Modulator

Glutathione

Also known as: GSH

Glutathione is an endogenous tripeptide (gamma-L-glutamyl-L-cysteinyl-glycine) that serves as the principal intracellular antioxidant in mammalian cells. It is not FDA-approved as a drug in the US; parenteral glutathione is used off-label (and in some compounding settings) for oxidative stress, hepatic support, and — controversially — skin lightening. The FDA has warned against injectable glutathione for skin lightening (2019) due to reports of serious adverse events.

Real-time market data

Pricing for Glutathione

Live vendor pricing, normalized to $/mg so sizes compare fairly — fused with each seller's Merit trust score and latest independent COA purity. Prices refresh daily.

Independent evidence

COAs for Glutathione

38 third-party tests across 14 vendors. Each card links to the full report.

All 38 COAs for Glutathione →
Measured purity 98.7%–100.0% across 27 COAs
Measured purity over time
Aggregated · 3rd-party listing
99.01 %
Jun 2026
Janoshik Analytical

For

GLUTATHIONE

by Verified Peptides· batch GL0526031500B

Aggregated · 3rd-party listing
98.71 %
Jun 2026
ILS Labs

For

Glutathione

by Crush Research· batch CRGLU-1500-2605-2

Aggregated · 3rd-party listing
99.03 %
May 2026
Freedom Diagnostics

For

Glutathione

by Peptide Supply Co.· batch GTT1.505192026

Aggregated · 3rd-party listing
99.34 %
May 2026
ILS Labs

For

Glutathione

by Ion Peptide· batch GT1500-05042026

Aggregated · 3rd-party listing
99.56 %
Apr 2026
Freedom Diagnostics

For

Glutathione

by Ion Peptide· batch GU600-04222026

Aggregated · 3rd-party listing
99.80 %
Apr 2026
Bioviridian · HPLC

For

Glutathione

by Prime Peptides· batch 3152026GLU

Aggregated · 3rd-party listing
99.94 %
Apr 2026
Kovera Labs

For

Glutathione

by Ion Peptide· batch GU750-04042026

Aggregated · 3rd-party listing
99.45 %
Apr 2026
Freedom Diagnostics · HPLC

For

Glutathione

by Blank Peptides· batch 665394

Aggregated · 3rd-party listing
99.50 %
Apr 2026
Biogenica Labs · HPLC

For

Glutathione

by Amino Club· batch GLT0001

Aggregated · 3rd-party listing
99.92 %
Mar 2026
Kovera Labs

For

Glutathione

by Ion Peptide· batch GU600-03242026

Aggregated · 3rd-party listing
99.94 %
Mar 2026
Kovera Labs

For

Glutathione

by Ion Peptide· batch 25123001

Aggregated · 3rd-party listing
99.91 %
Mar 2026
Kovera Labs · HPLC

For

Glutathione

by Mile High Compounds· batch GLU-150-MH-01

Aggregated · 3rd-party listing
99.55 %
Mar 2026
Freedom Diagnostics

For

Glutathione

by Real Peptides

Aggregated · 3rd-party listing
99.61 %
Feb 2026
Freedom Diagnostics · HPLC

For

Glutathione

by Peptide Supply Co.· batch GTK150022026

Aggregated · 3rd-party listing
98.75 %
Feb 2026
Janoshik Analytical · HPLC

For

Glutathione

by Verified Peptides· batch GL0226021500B

Aggregated · 3rd-party listing
99.72 %
Jan 2026
Freedom Diagnostics · HPLC

For

Glutathione

by Simple Peptide· batch GLUTO106202G-H

Aggregated · 3rd-party listing
99.19 %
Dec 2025
Janoshik Analytical · HPLC

For

Glutathione

by Verified Peptides· batch 05-25-011500A

Aggregated · 3rd-party listing
99.73 %
Dec 2025
Freedom Diagnostics

For

Glutathione

by Ion Peptide· batch GLUL5-122925

Aggregated · 3rd-party listing
99.02 %
Nov 2025
Freedom Diagnostics

For

Glutathione

by Ion Peptide· batch GLU75-1125

Aggregated · 3rd-party listing
99.21 %
Nov 2025
Janoshik Analytical · HPLC

For

L-Glutathione

by Hydro Research Peptides· batch HYDROJ9Y2WD6

Aggregated · 3rd-party listing
99.63 %
Nov 2025
Freedom Diagnostics

For

Glutathione

by Riptide Wellness· batch RWGTH-10-1001

Aggregated · 3rd-party listing
99.97 %
Oct 2025
Freedom Diagnostics

For

Glutathione

by Ion Peptide· batch 25083001

Aggregated · 3rd-party listing
99.97 %
Oct 2025
Freedom Diagnostics

For

Glutathione

by Ion Peptide· batch GE0.6-1025

Aggregated · 3rd-party listing
99.80 %
Oct 2025
Freedom Diagnostics · HPLC

For

Glutathione

by Simple Peptide· batch GLTA 10202025-J

Research depth

33 citations indexed for Glutathione

All research on Glutathione →

animal · 2026

Glutathione precursors: a new opportunity for dietary interventions in obesity and metabolic health?

Purpose of review Obesity is a major risk factor for the development of metabolic disorders, including insulin resistance, hepatic steatosis and metabolic syndrome.

Study · 2026

Aspergillus flavus glutathione transferase as a potential approach for synthesis of epothilone-glutathione conjugates with enhanced anticancer activity for the drug-resistant cells: characterization and molecular docking analysis

animal · 2026

Gut microbiota-regulated glutathione metabolic rhythms restore obesity-induced colonic inflammatory oscillations

Obesity disrupts circadian inflammatory rhythms, a defining feature of metabolic syndrome. However, the mechanisms connecting microbial and host circadian communication remain unclear.

animal · 2026

Interference with HMGB1 Inhibits Neuronal Ferroptosis Following Spinal Cord Injury through Targeting ACSL4

This study aimed to investigate the regulatory role of High-mobility group box 1 (HMGB1) in neuronal ferroptosis following spinal cord injury (SCI) and its underlying mechanisms.

Study · 2026

Glutathione Supplementation in Parenteral Nutrition to Prevent Oxidative Stress Related Complications in Preterm Infants: Preclinical Efficacy and Safety Profile

Numerous adverse effects caused by oxidative stress are commonly observed in preterm infants. This stress is caused by the oxidative burden resulting mainly from supplemental oxygen and parenteral nutrition (PN), and by their precarious antioxidant defense system.

review · 2026

Glutathione in Our Diet and Its Role in the Body: From Disease Prevention to Anti-Aging

Background/Objectives : Glutathione (GSH) is a fundamental tripeptide essential for maintaining cellular redox homeostasis, detoxification, and immune regulation. While GSH is synthesized endogenously, its levels typically decline with age, potentially increasing susceptibility to oxidative stress-related conditions.