Why Glutathione Levels Decline as You Age

Illustration of glutathione levels declining with age

Glutathione is the most abundant antioxidant your body produces internally. It is present in virtually every cell, with particularly high concentrations in the liver, lungs, kidneys and eyes. But this critical molecule does not maintain its levels indefinitely. As you age, glutathione production declines steadily, and the consequences ripple across every system in your body. … Read more

The Glutathione Recycling System

Illustration of the glutathione recycling system converting GSSG back to GSH

Your body does not just produce glutathione. It recycles it. This recycling system is one of the most elegant features of cellular biochemistry, allowing each glutathione molecule to neutralise multiple reactive species before being broken down. Understanding how this system works explains why glutathione is so effective and why maintaining it matters so much. How … Read more

How Your Body Makes Glutathione: The Synthesis Pathway

Illustration of the glutathione synthesis pathway inside a cell

If glutathione is the master antioxidant, then understanding how your body actually makes it is essential knowledge. The synthesis pathway reveals why oral glutathione supplements are largely ineffective, why certain nutrients and lifestyle factors matter so much and why the NRF2 pathway sits at the centre of your body’s antioxidant defence strategy. The Two Step … Read more

What Is Glutathione and Why Is It Called the Master Antioxidant

Illustration of glutathione molecule protecting a cell

In 1888, a French chemist named J. de Rey-Pailhade noticed that a substance in yeast cells could react with elemental sulphur. He named it philothion, from the Greek for sulphur-loving, and published a short paper describing its properties. The compound did not receive a proper chemical characterisation for another forty years. When it did, the … Read more