Key Benefits
- Most powerful endogenous antioxidant
- Essential for liver detoxification (Phase II)
- Supports immune cell function and proliferation
- Protects mitochondria from oxidative damage
- May support skin brightening and even tone
What is Glutathione?
Glutathione (GSH) is a tripeptide composed of three amino acidsÔÇöglutamate, cysteine, and glycineÔÇöfound in every cell of your body. Often called the "master antioxidant," it's the most abundant intracellular antioxidant and plays a central role in detoxification, immune function, and cellular protection.
Why It's Called the Master Antioxidant
Glutathione doesn't just neutralize free radicals directlyÔÇöit regenerates other antioxidants like vitamins C and E, effectively recycling your entire antioxidant network. It also serves as a substrate for glutathione peroxidase, one of your body's most critical antioxidant enzymes.
Liver Detoxification
Your liver relies heavily on glutathione for Phase II detoxificationÔÇöthe process of conjugating toxins, heavy metals, and metabolic waste products to make them water-soluble for excretion. Glutathione depletion is a hallmark of liver stress and toxin overload. Acetaminophen (Tylenol) depletes glutathione rapidly, which is why NAC (a glutathione precursor) is the antidote for overdose.
Immune Function
LymphocytesÔÇöthe white blood cells that coordinate your immune responseÔÇörequire adequate glutathione to proliferate and function. Research shows that immune cell activity directly correlates with intracellular glutathione levels. Low glutathione is associated with immune dysfunction in aging and chronic illness.
Absorption Challenges
Oral glutathione was historically considered poorly absorbed, as digestive enzymes break down the tripeptide. However, newer forms have improved bioavailability: liposomal glutathione encapsulates GSH in phospholipid spheres for enhanced absorption; S-acetyl glutathione resists breakdown in the stomach; and reduced glutathione (GSH) at sufficient doses (500mg+) has shown clinical benefit in raising blood levels.
Boosting Glutathione Naturally
Beyond direct supplementation, you can support glutathione production with precursors: NAC (N-Acetyl Cysteine) provides the rate-limiting amino acid cysteine; alpha-lipoic acid recycles glutathione; selenium is required for glutathione peroxidase; and sulfur-rich foods (cruciferous vegetables, garlic, onions) provide raw materials.
Disclaimer: This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare provider before starting any new supplement regimen.