Glutathione

Intracellular thiol tripeptide for oxidative-stress assays.

Master antioxidant tripeptide for oxidative-stress assays
Purity ≥ 97.3% (HPLC)
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The why

Glutathione is the primary intracellular thiol antioxidant. It is used in redox-balance, detoxification and hepatic-stress laboratory models.

Key ingredients

Glutathione 1500 mg
Sterile lyophilized powder

Certificate of Analysis

Every lot, tested and documented.

Independent third-party analysis on every Glutathione lot by Vanguard Laboratory (A2LA accredited). Purity, quantity, identity, heavy metals, endotoxins and bioburden. The results below are pulled straight from the signed report.

Verified by Vanguard HPLC-UV/VIS ICP-MS USA-shipped

Vanguard Laboratory · Level 3 verified

Glutathione

Open signed COA

Lot number

GLT.1500.A

Laboratory ID

V260617-22036

Date reported

6/25/2026

Report number

V260617-22 036

Chromatographic purity

97.97%

Quantity per vial

1412 mg

Endotoxins (LAL)

Pass - <5.00 EU/mg

Bioburden (USP 61)

Pass - No Growth Detected

Heavy metals (ICP-MS)

Not detected

Signed by

Dustin Newman, Laboratory Director

Values above are transcribed from the Vanguard Laboratory report for lot GLT.1500.A. Heavy metals reported as ND (not detected) for arsenic, cadmium, lead and mercury. Open the signed PDF for chromatograms and the full analyte table.

What we test

Purity + identity
97.97%
HPLC-UV/VIS chromatographic purity against a reference standard.
Quantity
1412 mg
Confirms the vial holds at least what the label says.
Heavy metals
Not detected
ICP-MS screen for arsenic, cadmium, lead and mercury.
Endotoxins + bioburden
Pass - <5.00 EU/mg
LAL endotoxin assay and USP 61 microbial count screening.