Ergothioneine:
The antioxidant your body was designed to keep.
A naturally occurring antioxidant found in mushrooms— and one of the few nutrients with its own dedicated transport system in the human body.
Meet
L-Ergothioneine (EGT)
Naturally found in mushrooms.
Ergothioneine is a unique antioxidant naturally found in mushrooms and a handful of other foods.
But there's a catch:
Most foods contain only tiny amounts.
One GeneIII® Capsule
The amount of EGT in 300–500g of reishi mushrooms
Brain
The blood-brain barrier blocks many compounds, but EGT has a dedicated transporter into the brain.
Skin
Daily exposure to sunlight and the environment puts skin under constant stress.
Kidneys
Continuous filtration puts kidney cells under constant demand.
Eyes
A lifetime of light exposure puts constant demands on eye cells.
Heart
Constant activity exposes heart cells to ongoing oxidative stress.
Liver
The liver’s role in metabolism makes it one of the body’s busiest organs.
Your body doesn’t treat it like other antioxidants.
Most antioxidants simply pass through the body.
Ergothioneine is different.
Your body has a dedicated transporter, called OCTN1, whose job is to actively absorb it into cells.
Other Compounds
No dedicated transport
EGT
Transported via OCTN1
OCTN1
transport system
Your body keeps it where it’s needed.
After it's absorbed, EGT builds up in parts of the body exposed to the most oxidative stress— including the brain, eyes, liver, skin, and kidneys.
Every day, your body faces oxidative stress.
Your body burns energy and encounters environmental stress every day. This creates unstable molecules that build up and cause wear and tear on your cells over time.
Much of this happens inside your mitochondria— the tiny engines that power every cell in your body.
metabolism
aging
UV exposure
physical activity
pollution
mitochondria
EGT works directly inside these engines to neutralize unstable molecules, helping protect your cells from the inside out.
From your cells to your health.
By helping protect cells from oxidative stress, EGT may support healthy brain function, sleep, energy production, liver health, and healthy aging.*
ENERGY
SLEEP
LIVER
COGNITIVE
HEALTHY AGING
GeneIII® EGT in Human Clinical Studies
Human clinical studies have evaluated GeneIII® EGT’s role in areas including energy, sleep quality, liver health, and reproductive health.
More Energy
+51% Daytime Energy
- More energy throughout the day
- Faster recovery
- Better sleep quality
Women’s Health
+38% AMH
- Hormonal balance
- Ovarian support
- Menstrual wellness
Liver Health
-20% Lower Liver Stress Markers
- Liver support
- Better recovery
- Reduced fatigue
Naturally found in mushrooms.
EGT is a unique antioxidant naturally found in mushrooms and a handful of other foods.
But there’s a catch:
Most foods contain only tiny amounts.
Your body doesn’t treat it like other antioxidants.
Your body keeps it where it’s needed most.
After it’s absorbed, EGT builds up in parts of the body exposed to the most oxidative stress— including the brain, eyes, liver, skin, and kidneys.
Meet
L-Ergothioneine (EGT)
Other Compounds
No dedicated transporter
EGT
Transported via OCTN1
OCTN1
transport system
Every day, your body faces oxidative stress.
Your body burns energy and encounters environmental stress every day. This creates unstable molecules that build up and cause wear and tear on your cells over time.
Much of this happens inside your mitochondria— the tiny engines that power every cell in your body.
metabolism
aging
UV
exercise
pollution
From your cells to your health.
By helping protect cells from oxidative stress, EGT may help support healthy brain function, sleep, energy production, liver health, and healthy aging.*
GeneIII® EGT in
Human Clinical Studies
Human clinical studies have evaluated GeneIII EGT’s role in areas including energy, sleep quality, liver health, and reproductive health.
More Energy
+51% Daytime Energy
- More energy throughout the day
- Faster recovery
- Better sleep quality
Women’s Health
+38% AMH
- Hormonal balance
- Ovarian support
- Menstrual wellness
Liver Health
-20% Lower Liver Stress Markers
- Liver support
- Better recovery
- Reduced fatigue
Ergothioneine:
The antioxidant
your body was
designed to keep.
A naturally occurring antioxidant found in mushrooms— with its own dedicated transport system in the human body.
ENERGY
SLEEP
LIVER
COGNITIVE
HEALTHY AGING
One GeneIII® Capsule
The amount of EGT in 300–500g of reishi mushrooms
EGT works directly inside these engines to neutralize unstable molecules, helping protect your cells from the inside out.
mitochondria
Most antioxidants simply pass through the body.
EGT is different.
Your body has a specific transporter, OCTN1, whose job is to actively carry and absorb EGT into cells.

