Peptides
Glutathione (L-Glutathione)
Glutathione is a naturally occurring tripeptide antioxidant studied in oxidative-stress research. Below, we compare vendors currently stocking research-grade Glutathione — not just a single sales page.
Glutathione is a naturally occurring tripeptide antioxidant studied in oxidative-stress research. Below, we compare vendors currently stocking research-grade Glutathione — not just a single sales page.
Prices and testing claims are pulled from each vendor's product listing. Always confirm current price and COA (Certificate of Analysis) on the vendor's site before buying.
| Vendor | Price | Purity Testing | Code | |
|---|---|---|---|---|
 SwissChemsBest Value |
$29.95 | Third-party COA | Buy Here → | |
 Amino Club |
From $59.99 | Third-party COA | Buy Here → | |
 Amino Vault |
$72.68 | Third-party COA | Buy Here → | |
 American Peptides |
$75.00 | Third-party COA | Buy Here → |
Glutathione (L-Glutathione) is a naturally occurring tripeptide composed of glutamate, cysteine, and glycine, synthesized in nearly every cell in the human body. It is widely studied as the body's primary intracellular antioxidant and a central player in detoxification pathways.
Research-grade Glutathione is typically supplied as a lyophilized powder in sealed vials, commonly at 600mg to 1500mg strengths, intended for laboratory research use.
Glutathione neutralizes reactive oxygen species directly and serves as a cofactor for glutathione peroxidase, an enzyme central to cellular antioxidant defense. It also plays a role in Phase II liver detoxification, conjugating with toxins and heavy metals to facilitate their excretion.
As the body's master antioxidant, glutathione is one of the most-studied molecules in oxidative-stress research, with investigations spanning aging, neurodegeneration, and general cellular health.
Glutathione's role in Phase II hepatic detoxification has made it a subject of research in liver-health contexts, including studies examining its depletion in conditions involving oxidative or toxicant stress.
Glutathione occurs naturally in the body and has a favorable general safety profile in studied contexts, though IV and injectable glutathione for cosmetic skin-lightening use (a popular off-label application) has not been evaluated for long-term safety by the FDA and has been associated in some case reports with skin and kidney concerns at high, repeated doses.
Doses studied in clinical and research contexts vary substantially by administration route (oral, IV, injectable) and study objective; no single standardized research-use dosage exists for injectable glutathione.
Compound X does not sell Glutathione (L-Glutathione) directly. We provide independent research, comparisons and vendor links — see the vendor comparison table above for current US, UK, Canada and Australia options.
Glutathione research is indexed on PubMed under search terms such as "glutathione antioxidant" and "glutathione detoxification pathway."
New guides, vendor comparisons and compound breakdowns every week.