Longevity Category
THE MASTER ANTIOXIDANT
GSH; L-Glutathione; Reduced Glutathione
Glutathione is your body's main antioxidant, made from three amino acids in your liver. It protects every cell from damage, helps detoxify harmful substances, and supports immune function. Levels decline with age and stress, making supplementation valuable for anti-aging and detoxification.
Dose and schedule recommendations shown below come from The Peptide App Clinical Team. Research links are provided so readers can inspect the supporting evidence directly. Review the sources.
No. This profile records Glutathione as not FDA approved and for research use only.
Review the regulatory and source details on this page for the current context.
Dose: 200 mg subcutaneously once daily.
Schedule: daily. Cycle: Ongoing or as needed. This is clinical-team guidance for reference and does not replace individualized instructions from a licensed clinician.
This guide links to 2 curated or current research sources.
Open the research section to inspect the source titles, publication details, study types, and available abstracts directly.
Review the Glutathione research sourcesReported side effects of Glutathione include Bloating or cramps at high doses and Wheezing in asthmatics.
They are reported or occasional reactions, not a prediction of what any one person will experience.
Glutathione has an editorial safety grade of A (Excellent Safety).
Naturally occurring in the body. Very safe at physiological doses. Safety depends on dose, sourcing, health history and medical supervision, so this page does not call it safe for personal use.
Neutralizes reactive oxygen species to protect cells
Binds toxins and helps eliminate them from the body
Regulates immune cell function and cytokine balance
Glutathione is the tripeptide gamma-L-glutamyl-L-cysteinylglycine, made from glutamate, cysteine and glycine. The gamma designation describes the connection through glutamate's side-chain carboxyl group rather than the usual alpha-carboxyl linkage of a peptide backbone. That bond arrangement is part of its molecular identity.
[PubChem glutathione chemical record](https://pubchem.ncbi.nlm.nih.gov/compound/124886) · [National Cancer Institute glutathione entry](https://www.cancer.gov/publications/dictionaries/cancer-drug/def/glutathione)
Anyone wanting antioxidant protection · People with high toxin exposure · Those supporting liver health
In-stock prices from 112 vendors, checked Oct 15, 2026.
Market evidence
We found certificates from some of the Glutathione vendors we track. Based on the certificates our crawler found; vendors may publish more than we index. Research on this page describes the molecule. Vendor certificates concern particular market samples or batches; they do not change the research evidence or establish clinical safety, sterility, or suitability for use.
Certificate assessment
3 evaluated certificates
3 graded · 0 not graded · 2 in the A range.
Each result belongs to the named vendor’s certificate. Grades assess the document and its reported tests, not the vendor’s whole catalog or the safety of a product.
Automated checks can make mistakes. Open “Why this result?” for the reason and any review notice, and check the linked COA’s lot against your product. How grading works
3 evaluated records
Document grade
B2: Identity, purity and amount are supported, and the lab's own records match this certificate.
Document check: flag.
Lab record: matched.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
GL15KC
Document grade
C3: We couldn't confirm this certificate against the lab's own records, so the grade stops at A-.
Document check: flag.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
3152026GLU
Document grade
X2: The certificate's identity evidence (Identity: L-Glutathione) can't confirm the peptide on its own; that needs mass spectrometry or a side-by-side match to a reference standard.
Document check: fail.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
| COA grade | Printed lab | Certificate | |||
|---|---|---|---|---|---|
| Orbitrex Peptides Lot: GL15KC | Document grade Why this result?B2: Identity, purity and amount are supported, and the lab's own records match this certificate. Document check: flag. Lab record: matched. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Freedom Diagnostics Testing | Jul 2, 2026 | 99.74%99.5%+ | View COA |
| Prime Peptides Lot: 3152026GLU | Document grade Why this result?C3: We couldn't confirm this certificate against the lab's own records, so the grade stops at A-. Document check: flag. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Bioviridian | Apr 24, 2026 | 99.8%99.5%+ | View COA |
| OmegaAmino Lot: Not reported | Document grade Why this result?X2: The certificate's identity evidence (Identity: L-Glutathione) can't confirm the peptide on its own; that needs mass spectrometry or a side-by-side match to a reference standard. Document check: fail. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Chromate | Apr 6, 2026 | 98.45%Under 99% | View COA |
The clinic network
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from $2.14/mg · 24 vendorsNº 003 / 006Regenerate your liver and heal your gut lining
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Compound evidence
Oral glutathione modestly reduced melanin in small, short trials, mostly on sun-exposed skin. IV glutathione lacks supporting trial evidence.
Compound evidence
Oral glutathione raised blood levels 30-35% in a 6-month trial but not in a 4-week one. IV glutathione's best trial protected against cisplatin neuropathy.
