L-Glutathione Research Peptide

Reduced L-Glutathione is the cell's primary endogenous antioxidant — a tripeptide (γ-Glu-Cys-Gly) central to redox homeostasis, detoxification pathways and oxidative-stress research across cell biology.

Glutathione oxidises readily, so purity and handling determine whether your assay measures the reduced form or its disulphide. Our material is independently verified to ≥99% purity by HPLC and ships with a batch-specific COA.

Supplied lyophilised in sterile, tamper-evident vials with tracked UK delivery.

Orders placed before 4pm Monday–Friday are dispatched the same working day. Standard tracked UK delivery (1–2 working days) is £4.99, or free on orders over £25; next-working-day delivery is available at checkout. All orders ship in plain, tamper-evident packaging with no external indication of contents.

Every order is covered by our 7-day money-back guarantee: if anything arrives damaged or incorrect, contact us within 7 days and we will replace it or refund you in full. Volume pricing applies automatically — 20% off orders over £150 and 30% off over £500. See our shipping page for full details, including European delivery.

Store at -20°C. After reconstitution, refrigerate at 2–8°C and use within 14 days.

Reconstitute under sterile laboratory conditions using bacteriostatic water. Handle only with appropriate laboratory PPE and procedures.

L-Glutathione is supplied strictly for in-vitro laboratory research purposes only. It is not a medicine, supplement or cosmetic, and is not intended for human or veterinary use, consumption, or diagnostic purposes. By purchasing you confirm you are a qualified researcher or institution and agree to our Research Use Terms.