What is the CAS number for L-Glutathione?

The CAS number for L-Glutathione is 70-18-8. Its molecular formula is C₁₀H₁₇N₃O₆S (MW 307.32 g/mol).

What doses of L-Glutathione are available wholesale?

Wholesale Peptide Supply stocks L-Glutathione in 1500mg, 600mg. Wholesale pricing is provided by quote based on order volume, from a 3-kit (30-vial) order minimum, mix and match across doses and compounds.

Is L-Glutathione third-party tested?

Yes. Every lot of L-Glutathione is tested by an independent third-party laboratory, and a per-lot Certificate of Analysis is included with every order at no charge, issued in the name of Wholesale Peptide Supply. The most recent published lot, 100089-0932 (1500mg), was tested by Optiq Health Labs on 20 August 2026 by RP-HPLC / LC-MS. Every lot on file is listed with its certificate on this page.

Is L-Glutathione for human use?

No. L-Glutathione is sold strictly as a chemical reagent for in-vitro laboratory research and is not for human or veterinary use. Wholesale Peptide Supply is not a pharmacy or compounding facility.

How do I get wholesale pricing for L-Glutathione?

Request a quote through our contact form or open a wholesale account. An account manager replies with volume pricing and lead times the same day. For anything urgent, text or call (714) 625-9215 to reach a real person in the US.

Can I order L-Glutathione in bulk?

Yes. L-Glutathione is available for bulk and wholesale orders, quoted by dose and volume, from a 3-kit (30-vial) order minimum, mix and match across doses and compounds, with lower prices at 10 kits and at 100 kits (1,000 vials) in the order. Submit the doses and quantities you need for a bulk quote.

Research Use Only. L-Glutathione is sold as a chemical reagent for in-vitro laboratory research, not for human or veterinary use. It is not a drug, supplement, or compounded preparation. It must be handled by qualified professionals. Wholesale Peptide Supply is not a pharmacy or compounding facility under 503A or 503B.

Anti-Aging & LongevityCAS 70-18-8

Wholesale L-Glutathione — Bulk Research Supply

Available sizes

600mg$12.04/vial 1500mg$17.59/vial See pricing & order

In-stock orders ship same day when paid by 1 pm PT, Mon–Fri. Overnight available.

Buy L-Glutathione wholesale and in bulk from a US-based research peptide supplier. Every lot is sourced in the USA and third-party tested, with the lab and method on each lot's certificate. Bulk L-Glutathione is quoted by dose and volume from a 3-kit (30-vial) order minimum, mix and match across doses and compounds; lower prices are earned at 10 kits and again at 100 kits in the order, mix and match.

L-Glutathione is a tripeptide serving as the primary intracellular antioxidant and redox regulator. Studied for ROS neutralization, redox homeostasis, and cellular integrity.

Wholesale L-Glutathione 1500mg lyophilized vial — Wholesale Peptide Supply — L-Glutathione 1500mg lyophilized vial as supplied. Labeling is customizable for private-label orders.

Wholesale Catalog

Available Doses

Published per-vial wholesale pricing for L-Glutathione. Sold in kits of 10 vials with a 3-kit (30-vial) order minimum, mix and match across doses and compounds; lower prices apply at 10 kits and at 1,000+ vials in the order. Contact us for larger or custom-volume quotes — answered the same day. Urgent? Text or call (714) 625-9215 — you’ll reach a real person in the United States, not a chatbot or an overseas call center.

L-Glutathione 1500mg

WPSGTT15 · CAS 70-18-8 · Anti-Aging & Longevity

1–9 kits: $17.59/vial$15.83 paying by card
10–99 kits: $14.07/vial$12.66 paying by card
100+ kits: $11.26/vial$10.13 paying by card

10% off with card Every product, every volume band — taken off at checkout when you choose card.

Sold in kits of 10 vials · 3-kit order minimum, mix and match · price set by the total kits in your order (BAC water not counted)

Quantity

vials

3 kits

Request a custom quote

L-Glutathione 600mg

WPSGTT60 · CAS 70-18-8 · Anti-Aging & Longevity

1–9 kits: $12.04/vial$10.84 paying by card
10–99 kits: $9.64/vial$8.67 paying by card
100+ kits: $7.71/vial$6.94 paying by card

10% off with card Every product, every volume band — taken off at checkout when you choose card.

Sold in kits of 10 vials · 3-kit order minimum, mix and match · price set by the total kits in your order (BAC water not counted)

Quantity

vials

3 kits

Request a custom quote

Questions? Text a rep or call (714) 625-9215 — a real person in the US answers.

Overview

L-Glutathione is a tripeptide serving as the primary intracellular antioxidant and redox regulator. Studied for ROS neutralization, redox homeostasis, and cellular integrity.

History

First discovered in 1888 by J. de Rey-Pailhade; structure elucidated in 1935 by Frederick Gowland Hopkins.

Why the reduced form is the whole point

L-Glutathione is the tripeptide γ-Glu-Cys-Gly, and almost everything that makes it useful as a reagent — and difficult as one — comes from the cysteine thiol in the middle.

That thiol is what neutralises reactive oxygen species, and in doing so it oxidises: two molecules of reduced glutathione (GSH) join through a disulfide bond to form the oxidised dimer (GSSG). The GSH/GSSG ratio is the readout in most redox work, which means a lot that has partially oxidised in storage is not merely weaker, it is measuring something different from what the protocol assumes.

This is the practical reason the Certificate of Analysis matters more here than on a conformationally stable peptide. Assay date and purity should be read together, because the compound can drift after a correct synthesis.

Buffers containing oxidising agents are avoided in preparation, exposure to air in solution is minimised, and material is kept out of light. Lyophilised material is stored at -20°C; reconstituted solution is refrigerated at 2-8°C and used promptly rather than held. General laboratory handling of a chemical reagent only.

Certificates of Analysis

1 certificate is on file for L-Glutathione — open any one to read the full report.

Lot / Lab	Dose	Tested	Purity	Certificate
100089-0932Optiq Health LabsRP-HPLC / LC-MS	1500mg	2026-08-20	—

Key Areas of Research

ROS neutralization, oxidative stress
Phase II conjugation reactions
Mitochondrial function, protein folding

References

Meister A., Anderson M.E. (1983). Annu Rev Biochem 52:711–760.
Lu S.C. (2013). Glutathione synthesis. Biochim Biophys Acta 1830:3143–3153.

L-Glutathione — Frequently Asked Questions

What is L-Glutathione?: L-Glutathione is a tripeptide serving as the primary intracellular antioxidant and redox regulator. Studied for ROS neutralization, redox homeostasis, and cellular integrity.
What is the CAS number for L-Glutathione?: The CAS number for L-Glutathione is 70-18-8. Its molecular formula is C₁₀H₁₇N₃O₆S (MW 307.32 g/mol).
What doses of L-Glutathione are available wholesale?: Wholesale Peptide Supply stocks L-Glutathione in 1500mg, 600mg. Wholesale pricing is provided by quote based on order volume, from a 3-kit (30-vial) order minimum, mix and match across doses and compounds.
Is L-Glutathione third-party tested?: Yes. Every lot of L-Glutathione is tested by an independent third-party laboratory, and a per-lot Certificate of Analysis is included with every order at no charge, issued in the name of Wholesale Peptide Supply. The most recent published lot, 100089-0932 (1500mg), was tested by Optiq Health Labs on 20 August 2026 by RP-HPLC / LC-MS. Every lot on file is listed with its certificate on this page.
Is L-Glutathione for human use?: No. L-Glutathione is sold strictly as a chemical reagent for in-vitro laboratory research and is not for human or veterinary use. Wholesale Peptide Supply is not a pharmacy or compounding facility.
How do I get wholesale pricing for L-Glutathione?: Request a quote through our contact form or open a wholesale account. An account manager replies with volume pricing and lead times the same day. For anything urgent, text or call (714) 625-9215 to reach a real person in the US.
Can I order L-Glutathione in bulk?: Yes. L-Glutathione is available for bulk and wholesale orders, quoted by dose and volume, from a 3-kit (30-vial) order minimum, mix and match across doses and compounds, with lower prices at 10 kits and at 100 kits (1,000 vials) in the order. Submit the doses and quantities you need for a bulk quote.