Name: Glutathione 1500mg (10 Vials / Kit)
Brand: HK Peptide
SKU: HK-GTT
Price: 100.00 USD
Availability: InStock

What is Glutathione?

Glutathione is built from glutamate, cysteine and glycine and occurs naturally in most cells at relatively high concentration, making it the most abundant non-protein thiol in the body. Because it is endogenous rather than a novel synthetic sequence, research interest centers on modulating its levels and activity rather than characterizing a new compound.

How it is understood to work

Its reactive cysteine thiol group allows glutathione to directly neutralize reactive oxygen species and to serve as the essential cofactor for glutathione peroxidase and glutathione S-transferase, enzymes central to cellular detoxification. It also helps regenerate oxidized vitamins C and E back to their active, reduced forms.

Research status

Glutathione is widely studied in oxidative stress, hepatic function, skin pigmentation, and immune and aging research, spanning cell-culture, animal, and some human clinical studies, particularly around liver protection and skin research. Bioavailability of exogenously supplied glutathione is an active area of methodological debate in this literature.

This listing: HK Peptide Glutathione

Brand: HK Peptide
Kit: 10 vials × 1,500 mg (15,000 mg in total)
Price per vial: $10.00
Price per mg: $0.01
Also sold by: TFC Peptides 1,500mg $85.00 · Uther Peptide 1,500mg $95.00 · Uther Peptide 600mg $55.00

Lab testing

There is no public lab report for this listing yet. We can ask the brand for the batch COA before you order. Many buyers also split an independent HPLC test with others who bought the same batch.

Request the batch COA · How group testing works

Bought through escrow: the brand is only paid after you confirm delivery. If the parcel never arrives, or an independent test shows the wrong compound or a significant under-fill, open a claim before releasing payment.

Specifications

Compound: Glutathione
Also known as: GSH, L-Glutathione (reduced)
Class: Endogenous tripeptide antioxidant
Form: Lyophilized (freeze-dried) powder
Per vial: 1500mg
Molecular formula: C₁₀H₁₇N₃O₆S
Molecular weight: 307.3 g/mol
Sequence: γ-Glu-Cys-Gly
Stated purity: ≥99% (HPLC)
Appearance: White lyophilized powder

Handling & storage

Supplied as a lyophilized powder; keep unopened vials frozen and protected from light, and once reconstituted, store refrigerated and use promptly, as the free thiol group is susceptible to oxidation over time.

Concentration check: adding 2 ml of bacteriostatic water to one 1500 mg vial gives 750 mg/ml. The Research Lab calculator in your dashboard works this out for any volume.

Questions

Why does glutathione purity matter for research use?

The thiol group that gives glutathione its antioxidant activity is also what makes it prone to oxidizing into the inactive disulfide form (GSSG), so a COA confirming HPLC purity and correct reduced-form identity is particularly relevant for this compound.

Is this the reduced or oxidized form of glutathione?

It is supplied as the reduced form (GSH), the biologically active thiol-containing species most commonly used in redox and detoxification research, as opposed to the disulfide-linked oxidized form (GSSG).

How much Glutathione is in this kit?

10 vials of 1500 mg each, so 15000 mg in total. The lab testing section above shows what the brand’s tested vial actually contained.

For laboratory research use only. Not for human or veterinary use. Nothing on this page is medical advice.