Not lying lying. But the gap between what that label implies and what your cells actually receive? It's enormous. Here's the honest breakdown nobody in the supplement aisle will give you.

Pick up any glutathione supplement in India — the box, the bottle, the blister pack — and it will say something like '1000mg Glutathione' or 'Reduced L-Glutathione 500mg.' Big number. Sounds potent. Implies that this much glutathione is going to work inside your body. But here's what the label quietly skips: the journey from your mouth to the inside of your skin cell is a brutal obstacle course, and most of that 1000mg doesn't survive it.

Let's follow one glutathione capsule from swallowing to (hopefully) arriving somewhere useful. Spoiler: it's a tough commute.

Stop 1: Your Stomach (Where Most of It Dies)

Your digestive system is incredibly efficient at breaking down complex molecules — proteins, peptides, anything held together with amino acid bonds. Glutathione is a tripeptide: three amino acids (glycine, cysteine, and glutamate) linked together. When it hits your stomach acid and then your small intestine's enzymes, those links get cut. The molecule falls apart into its three separate amino acids. They're absorbed — but they're not glutathione anymore. They're just building blocks the body might use for something, sometime.

Published research estimates that somewhere between 3% and 15% of oral glutathione makes it to your bloodstream intact. That means if you swallow a 1000mg capsule, you might — on a good day — absorb 150mg as the actual molecule. More likely closer to 30–50mg. The rest? Broken down, excreted, recycled into other things. Gone.

 

 

Stop 2: Your Bloodstream (Where It Floats, Doing Limited Work)

So let's be generous. Say 150mg makes it into your blood. It's circulating. It's doing some things out there — a bit of extracellular antioxidant activity, some immune signalling. This is why some people feel 'something' from oral glutathione. But here's the thing about blood: it's not inside your cells. It's the highway between your cells. The glow you want, the melanin regulation, the free radical neutralisation that prevents dull, uneven skin — that all happens inside the cell. And your bloodstream glutathione is stuck on the highway, unable to exit.

Stop 3: The Cell Wall (Where the Real Problem Starts)

This is the wall the supplement industry never tells you about. Cell membranes are incredibly selective. They have specific 'doors' — called transporters — for specific molecules. Glucose has a door. Many amino acids have doors. Intact glutathione does not have a door in most cells. There is no specific transporter for the full glutathione tripeptide. So even the fraction that survived your stomach and is circulating in your blood cannot enter your skin cells efficiently. It stays outside. The inside of the cell — where intracellular glutathione needs to be — remains unchanged.

This is not a design flaw. Your cell was never supposed to receive glutathione from outside. It was always supposed to make its own, inside, using a two-step process. The supplement industry tried to shortcut that process by sending in the finished product. The shortcut doesn't work the way they implied.

Why This Matters for Your Skin Specifically

✗  What oral glutathione supplements imply Takes 1000mg, gets 1000mg of antioxidant action inside skin cells. Label says 'brightening.' Must be working. Influencer skin is glowing from it.

✓  What the biology actually says 3–15% survives digestion. None enters cells directly. The intracellular glutathione that controls melanin and free radicals remains mostly unchanged. You're paying for a delivery that can't reach the destination.

 

So What Is Glyteine® Doing Differently?

Glyteine® (γ-glutamylcysteine) is the molecule your cell produces as step one of its own glutathione synthesis. Unlike intact glutathione, it has a specific cellular transporter — a door. The cell absorbs it directly. Once inside, the cell uses its own enzyme (glutathione synthetase) to convert it to finished glutathione. This is called intracellular synthesis. The glutathione is made inside, by the cell's own machinery, in the exact location where it's needed.

 

 

The 2017 Zarka & Bridge study in Redox Biology confirmed what the mechanism predicted: intracellular glutathione rose by 53% within 90 minutes of a single oral dose of Glyteine®. This is the number that doesn't exist for any standard oral glutathione supplement. Because the standard supplement can't make it past the cell wall.

Continual-G is the first and only product in India containing Glyteine®. It is available exclusively on SkinBB — Skin Beyond Borders — at ₹166/day. It's what you thought oral glutathione was doing. But with the biology to actually back it up.

  

The Bottom Line

Your glutathione tablet isn't useless — some of what it does is real. But the image of 1000mg of glutathione flooding your skin cells? That's not what's happening. Most of it never survives your stomach. What does survive can't enter your cells. The inside of your skin cells — where intracellular glutathione actually works — is largely untouched by standard oral supplementation. Glyteine® in Continual-G is the molecule that changes this. It has the door code. It enters the cell. And then the cell builds its own glutathione, exactly where it needs to be.

 

Your Questions, Answered

1. Is liposomal glutathione any better?

Better than standard oral, yes. Liposomal packaging protects more glutathione from stomach breakdown, so more reaches your blood. But the cell wall problem still applies — liposomal glutathione still can't efficiently enter cells the way Glyteine® can.

 

2. What does 'intracellular' mean in plain English?

Inside the cell. Your cells are tiny living units — everything that makes your skin glow happens inside them. Intracellular glutathione is the glutathione that's actually inside the cell doing its job, not floating around in blood outside.

 

3. Why do some people report results from standard oral glutathione?

Some people do see changes — likely from the extracellular antioxidant activity of circulating glutathione and the amino acids absorbed from the broken-down capsule. It's not zero effect. It's just not the intracellular effect. Like using a mop to clean the hallway when the mess is in the bedroom.

 

4. Does Continual-G also get broken down by the stomach?

Glyteine® (γ-glutamylcysteine) is more resistant to digestive breakdown than the larger glutathione tripeptide and has a specific absorption mechanism in the gut. Enough reaches the cells to produce the documented 53% intracellular rise in 90 minutes.

 

5. Where can I buy Continual-G in India?

Only on SkinBB — Skin Beyond Borders. It is not available in pharmacies or other e-commerce platforms. The exclusive channel ensures full ingredient transparency and correct protocol information with every purchase.