Glutathione is one of the most talked-about antioxidants. Whether for immune support, detoxification, or healthy aging, it’s often called the body’s “master antioxidant.” But here’s the catch: not all glutathione supplements work the same way—or at all.
Two popular options are liposomal glutathione and Immunocal®. One delivers pre-made glutathione, the other provides your body with the patented building blocks to make it naturally — exactly the way your cells are designed to.
So which one truly delivers what it claims to do? Let’s break it down.
What Is Glutathione and Why It Matters
Glutathione is a tripeptide made from three amino acids: Cysteine, Glutamate & Glycine
It’s present in every cell, where it:
✓ Protects against oxidative stress
✓ Detoxifies harmful compounds
✓ Supports immune function
✓ Aids DNA repair and protein synthesis
The problem? Levels decline naturally with age, stress, poor diet, and toxin exposure — making effective replenishment essential.
Liposomal Glutathione Not Yet Shown to Work on Humans
Liposomal glutathione encapsulates pre-made glutathione inside fat-based “liposomes” to help it survive digestion. On paper, it’s clever — but Dr. Jimmy Gutman, MD, world’s leading authority on glutathione, cautions:
“Has liposomal glutathione been proven to work in humans? The answer is disappointing — no gold-standard results exist.”
Key Limitation:
Glutathione supplements are made from genetically engineered bacteria or yeast (100% GMO).
What the Research for Liposomal Glutathione Shows (or Doesn’t)
Dr. Gutman searched PubMed.gov — the gold-standard medical research database — for human, randomized, placebo-controlled trials on liposomal glutathione.
“Only two studies exist, both in special disease contexts (diabetes and tuberculosis), showing only “alterations in immune response.”
The most-cited “positive” study, Oral Supplementation with Liposomal Glutathione Elevates Body Stores of Glutathione and Markers of Immune Function, has serious flaws:
✕ Not placebo-controlled
✕ Only 12 participants total
✕ Odd findings: lower doses outperformed higher
✕ Results were trends, not statistically significant
✕ Funded by the product’s manufacturer
Even the authors admit:
“Future placebo-controlled randomized trials… will be required to confirm the specificity of its intervention effects.”
Immunocal®: Clinically Proven Cellular Support
Instead of delivering pre-made glutathione, Immunocal® provides Bonded Cysteine™, a patented, bioactive form of cysteine that:
- Survives digestion intact
- Enters cells directly
- Enables your body to produce glutathione naturally — and regulate it as needed
Has Proven Results:
- Raises glutathione levels by up to 46% in just 3 months
- Backed by 80+ patents and nearly 100 published studies
- Supports immunity, detoxification, muscle performance, and recovery
Side-by-Side Comparison
Immunocal™
Pre-Made Glutathione
How It Works
Glutathione precursor delivering patented Bonded Cysteine™ so your body naturally produces & regulates glutathione as needed.
Delivers pre-made glutathione (often from GMO-engineered fungi & bacteria) that is broken down before fully absorbed.
Absorption
Works with your natural systems for efficient, continuous intracellular glutathione production.
Rapidly degraded in digestion or bloodstream; little reaches cells.
Intracellular Effect
Builds glutathione inside cells where it matters most.
Limited ability to enter cells and provide sustained antioxidant protection.
Nutritional Value
Highest Biological Value protein (BV 159) — complete amino acids + BCAAs for multiple health benefits.
Provides no amino acids or nutritional content.
Stability
Stable bonded form protects cysteine until it reaches cells.
Fragile and unstable — requires fat “wrapping” (liposomes) yet still breaks down.
Scientific Backing
Backed by 40+ years of research, 80+ patents, and nearly 100 clinical studies.
Limited robust human trials and minimal medical reference recognition.
Purity & Safety
Each batch is Clean Label Project Certified, Informed-Sport Certified, doping-free, free from plastics, heavy-metals, fat, antibiotics, hormones, sugar, and artificial sweeteners + fillers.
Many alternatives are unregulated, may contain fillers, plastics, or lack batch-tested certification.
Why Immunocal® Wins
Immunocal is the ONLY supplement intended to raise glutathione that has been proven to work using “Gold Standard Studies”. (Randomized, placebo-controlled, double-blind human clinical trials.)
By working inside the cell and leveraging your body’s natural production system, Immunocal® ensures glutathione is made exactly where — and when — it’s needed most.
Immunocal is completely natural + has only one ingredient.
100% Free From:
✓ Sugar
✓ Fat
✓ Artificial ingredients
✓ Gluten
✓ Additives
✓ Fillers