How is Glutathione supplied?

Glutathione is supplied as a lyophilised (freeze-dried) powder in 600 mg vials, for laboratory research use only.

Has this batch of Glutathione been independently tested?

Yes. Lot PX-2620-B was tested at 99.1% by an independent laboratory. The full certificate of analysis is published and searchable by lot code on the verify page, before and after purchase.

Is Glutathione for human use?

No. Glutathione is supplied strictly for in vitro laboratory research. It is not for human or animal consumption, and is not a drug, food, or cosmetic.

Glutathione

Endogenous Tripeptide

600mg

Research use only

Glutathione

Name: Glutathione
Brand: PepNex
Availability: InStock

Endogenous Tripeptide. Supplied in 600 mg vials, lyophilised and ready to reconstitute.

Batch certified

UK stock, same-day

Stored cold, shipped & sealed safely

Strength

How many vials?

2 more vials to save 5%

Add bacteriostatic water

Peptides ship as dry powder — you’ll need this to reconstitute the vial.

£70.01 from free UK delivery

Total£29.99

Ships today

Questions about Glutathione? Ask us

For laboratory research use only. Not for human or animal consumption, and not a drug, food, or cosmetic. Sold to qualified researchers and institutions.

About Glutathione

Molecular weight: 307.32 g/mol
CAS number: 70-18-8

Glutathione (reduced, GSH) is an endogenous tripeptide, γ-L-glutamyl-L-cysteinylglycine. It is the principal intracellular low-molecular-weight thiol and functions as a redox buffer, serving as a cofactor for glutathione peroxidases and glutathione S-transferases and participating in thiol-disulfide exchange (GSH/GSSG). Its γ-glutamyl bond is a non-standard peptide linkage.

For laboratory research use only. Not for human or veterinary use.

Specifications

Identity

Sequence: not recorded
Molecular formula: C10H17N3O6S
Molecular weight: 307.32 g/mol
CAS number: 70-18-8

Physical

Form: Lyophilised powder
Appearance: White to off-white powder
Solubility: Soluble in bacteriostatic or sterile water
Storage: Store the lyophilised powder at -20°C, protected from light. Refrigerate reconstituted material at 2 to 8°C and use within its stability window.

This batch

Purity: 99.1%
Lot: PX-2620-B
Test date: May 2026
Testing lab: third-party
Methods: HPLC, LC-MS/MS

Certificate

Certificate · lot PX-2620-B99.1% · HPLC / LC-MS/MS · May 2026

COA · PX-2620-B.pdfIndependent lab report

Handling and storage

Reconstitute with bacteriostatic or sterile water. Store the lyophilised powder at -20°C, protected from light; refrigerate reconstituted material at 2 to 8°C. Handle under standard laboratory conditions.

Literature

Glutathione
Meister A, Anderson ME · Annual Review of Biochemistry · 1983

Common questions about Glutathione

What is Glutathione?: Glutathione (reduced, GSH) is an endogenous tripeptide, γ-L-glutamyl-L-cysteinylglycine. It is the principal intracellular low-molecular-weight thiol and functions as a redox buffer, serving as a cofactor for glutathione peroxidases and glutathione S-transferases and participating in thiol-disulfide exchange (GSH/GSSG).
How is Glutathione supplied?: Glutathione is supplied as a lyophilised (freeze-dried) powder in 600 mg vials, for laboratory research use only.
How should Glutathione be stored and handled?: Reconstitute with bacteriostatic or sterile water. Store the lyophilised powder at -20°C, protected from light; refrigerate reconstituted material at 2 to 8°C. Handle under standard laboratory conditions.
Has this batch of Glutathione been independently tested?: Yes. Lot PX-2620-B was tested at 99.1% by an independent laboratory. The full certificate of analysis is published and searchable by lot code on the verify page, before and after purchase.
Is Glutathione for human use?: No. Glutathione is supplied strictly for in vitro laboratory research. It is not for human or animal consumption, and is not a drug, food, or cosmetic.