Glutathione
Glutathione is an endogenous tripeptide made from glutamate, cysteine, and glycine. Oral supplements and compounded injectable products are distinct exposures.
At a glance
- Evidence stage
- Early human
- Regulatory status
- Supplement availability does not establish an approved treatment indication; FDA has issued specific alerts about contaminated compounded injectables.
- Research context
- Glutathione is an endogenous tripeptide made from glutamate, cysteine, and glycine. Oral supplements and compounded injectable products are distinct exposures.
What this is
- Glutathione is an endogenous tripeptide made from glutamate, cysteine, and glycine. Oral supplements and compounded injectable products are distinct exposures.
What this isn't
- A recommendation to use, prepare, combine, or administer a product
- Evidence that a related molecule or a differently formulated product has the same effects
Key terms
Glutathione is an endogenous tripeptide made from glutamate, cysteine, and glycine. Oral supplements and compounded injectable products are distinct exposures.
Glutathione participates in cellular oxidation-reduction reactions and the handling of reactive compounds. That essential physiological role does not mean that increasing intake necessarily improves health. The relevant questions are whether a particular formulation changes tissue availability and whether that change improves a patient-important outcome, rather than simply increasing a blood antioxidant measurement.
Evidence limits
How to read the evidence
Changes in glutathione stores do not establish longer life, prevention of cancer or dementia, improved athletic recovery, or safe skin lightening. These trials also do not validate intravenous wellness products. Evaluating the exact formulation, route, tested population, and clinical endpoint is essential; endogenous production, oral supplementation, and compounded injection cannot share one blanket efficacy or safety conclusion.
Sources appraised 2026-10-28. Educational information; not medical advice. Study findings apply to the populations, preparations and outcomes described.
External sources and citations
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