L-Glutathione (γ-glutamyl-cysteinyl-glycine) is a tripeptide present in virtually every cell of the human body and serves as the master intracellular antioxidant. It plays critical roles in neutralizing reactive oxygen species (ROS), regenerating other antioxidants (Vitamins C and E), detoxifying xenobiotics and heavy metals via conjugation reactions, and supporting immune cell function. Glutathione levels decline significantly with age, chronic disease, and environmental stress exposure. Clinical research supports supplementation for conditions including liver disease, neurodegenerative disorders, and immune dysfunction. We supply pharmaceutical-grade reduced L-Glutathione in bulk quantities for supplement manufacturers, pharmaceutical companies, and IV therapy clinics.
| Sequence | γ-Glu-Cys-Gly |
| Molecular Formula | C10H17N3O6S |
| Molecular Weight | 307.32 g/mol |
| Purity | ≥99% (HPLC) |
| Form | Lyophilized powder / Crystalline |
| Storage | Room temperature, desiccated |
| CAS | 70-18-8 |
According to comprehensive reviews in the Journal of Peptide Science, synthetic therapeutic peptides represent one of the fastest-growing segments of the pharmaceutical industry.
Research published in Trends in Pharmacological Sciences (2023) highlights the importance of peptide purity exceeding 99% for reproducible preclinical research outcomes.
Master antioxidant tripeptide essential for cellular detoxification, immune function, and oxidative stress protection in pharmaceutical applications.
We supply L-Glutathione at ≥99% (HPLC) purity. Higher purity grades are available for pharmaceutical applications upon request.
Minimum order quantities for wholesale L-Glutathione depend on the quantity and purity grade required. Contact our sales team for specific pricing and MOQ information.
L-Glutathione should be stored at Room temperature, desiccated in a desiccated environment. Proper cold-chain shipping is maintained for all deliveries.
Every batch includes a comprehensive Certificate of Analysis with HPLC purity data (≥99%), mass spectrometry confirmation, amino acid analysis, endotoxin testing (<0.5 EU/mg), and residual solvent analysis per ICH Q3C guidelines.
In-stock peptides are dispatched within 48 hours of order confirmation. International delivery takes 5–7 business days via temperature-controlled shipping. Express 2–3 day options available. Our on-time delivery rate is 99.2%.
Yes. Dr. Peptides provides Drug Master File (DMF) documentation, Certificates of Origin, MSDS/SDS in multiple languages, and stability data packages compliant with ICH guidelines for regulatory submissions.
Dr. Peptides offers a 100% money-back quality guarantee. If any product fails to meet the purity specifications stated on its Certificate of Analysis, we provide a full replacement or refund within 48 hours of claim receipt.
All shipments use pharmaceutical-grade insulated packaging with qualified gel packs maintaining 2–8°C for up to 96 hours. Each package includes a temperature data logger for verification upon receipt, per WHO guidelines for temperature-sensitive pharmaceuticals.
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