L-Glutathione Research | QSC — Tripeptide Antioxidant
QSC · RESEARCH CATALOG
L-Glutathione Research ≥99% HPLC · Janoshik Independent COA · US-Based · Research Use Only
L-Glutathione (GSH, gamma-Glu-Cys-Gly) is the most abundant endogenous antioxidant tripeptide in mammalian cells. Research applications span oxidative stress models, mitochondrial protection, detoxification pathway research, skin pigmentation (melanogenesis inhibition via tyrosinase), and glutathione-dependent enzyme systems. GSH levels decline with age and in response to inflammatory conditions. QSC stocks L-Glutathione at ≥99% HPLC with Janoshik independent COA.
GSH donates electrons to neutralize reactive oxygen species (ROS) and hydrogen peroxide via glutathione peroxidase (GPx). Oxidized glutathione (GSSG) is regenerated to GSH by glutathione reductase using NADPH. The GSH:GSSG ratio is a primary marker of cellular redox status.
Melanogenesis Inhibition
GSH inhibits tyrosinase (the rate-limiting enzyme in melanin synthesis) via copper chelation and radical scavenging. Studied for skin lightening and pigmentation research at the cellular level.
Mitochondrial Protection
Mitochondrial GSH (mGSH) is independently maintained from cytosolic GSH and is critical for inner mitochondrial membrane integrity, Complex I/II protection, and apoptosis prevention.
Frequently Asked Questions
What is L-Glutathione?
L-Glutathione (GSH) is a tripeptide (Glu-Cys-Gly) that is the primary endogenous antioxidant in mammalian cells. It is studied for oxidative stress protection, mitochondrial function, detoxification, and melanogenesis inhibition. QSC stocks L-Glutathione at ≥99% HPLC with Janoshik COA. Research use only.
Does QSC stock L-Glutathione?
Yes — QSC stocks L-Glutathione at ≥99% HPLC with Janoshik independent COA, verifiable at verify.janoshik.com. Research use only.
Research Use Only: All QSC products sold strictly for in vitro laboratory research. Not for human or veterinary use. Information on this page is educational and does not constitute medical advice.
