GeneIII® L-Ergothioneine 30mg

GeneIII® L-Ergothioneine 30mg

99.99% Purity • 30mg Per Capsule • Clinically Studied

The rare antioxidant that recharges your cells from within. Supports energy, liver health, and healthy aging.
  • Cognitive Health*
  • Sleep Quality*
  • Natural, Steady Energy (Without Stimulants)*
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Stay mentally sharp as you age
Ergothioneine is a unique antioxidant your body actively transports into the brain through a dedicated transporter (OCTN1). It helps protect brain cells from everyday oxidative stress—supporting clearer thinking, better focus, and long-term cognitive health.*

Sleep deeper. Wake up restored.
Quality sleep is when your body repairs and resets. By supporting cellular recovery and nervous system balance, ergothioneine helps your body recharge more effectively overnight, so you wake up feeling more rested and refreshed.*

Feel steady, natural energy (without stimulants!)
This isn’t a quick boost like caffeine or other stimulants. It’s sustained energy at the cellular level. Ergothioneine supports mitochondrial function— helping your body produce energy more efficiently, so you feel less fatigue and more consistent natural energy throughout the day.*

Ingredients: L-Ergothioneine 30mg

Other Ingredients: Microcrystaline Cellulose, Hydroxypropyl Methylcellulose, Magnesium Stearate

Does Not Contain: Dairy products, shellfish, peanuts, artificial sweeteners, artificial preservatives, tree nuts, eggs, etc.

Directions: Take 1 capsule daily, or as recommended by your healthcare practitioner. Store in a cool, dry place away from light.


Our Commitment to Higher Standards

At GeneIII, we hold ourselves to uncompromising standards of quality, purity, and transparency. Our L-Ergothioneine is produced with advanced patented fermentation technology, achieving 99% purity and exceptional bioavailability. Each formulation reflects our commitment to scientific precision and genuine care for your well-being.

Pure, third-party tested L-Ergothioneine in a single daily capsule.

Clinically tested benefits seen within 30 days

Participants experienced measurable improvements in just 30 days after taking L-Ergothioneine.

  • 20% better liver function
  • 39% less fatigue
  • 52% better sleep quality

No side effects reported.

FAQ

What is L-Ergothioneine?

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L-Ergothioneine (EGT) is a naturally occurring amino acid antioxidant that the human body can’t make on its own. It’s found in trace amounts in certain foods like mushrooms and beans, and plays a key role in cellular protection. What makes EGT unique is that our bodies have a dedicated transporter (called OCTN1) specifically designed to absorb and deliver it to areas most exposed to oxidative stress, such as the brain, liver, and skin.

Why is L-Ergothioneine important?

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Over time, our cells are exposed to oxidative and environmental stress that can impact how they function and recover. L-Ergothioneine helps to maintain mitochondrial health and support the body’s natural ability to protect and repair itself. Because the body doesn’t synthesize EGT and modern diets provide very little, maintaining adequate levels becomes increasingly important as we age. Supplementing with a pure, bioavailable form helps replenish what’s missing and supports long-term cellular resilience.

What makes GeneIII different from other brands?

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Most brands use mushroom extracts or purchase bulk L-Ergothioneine from outside suppliers, often of varying purity and origin. This matters because extract-based ingredients can contain only trace amounts of EGT or inconsistent levels from batch to batch, while bulk-sourced material often lacks full traceability or purity verification.
At GENEIII, we take a completely different approach. We are a biotechnology company first, not a reseller. Every capsule begins in our own research lab, where we produce L-Ergothioneine through a patented fermentation and purification system. This process allows us to achieve 99.99% verified purity, one of the highest levels ever recorded. Our commitment to traceability ensures you know exactly where your ingredient comes from and how it’s made.

Is L-Ergothioneine safe to take daily?

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Yes. L-Ergothioneine has been evaluated in multiple safety and toxicology studies. L-Ergothioneine supports long-term cellular protection, so it’s safe and beneficial for ongoing daily use. Think of it as a foundational nutrient for healthy aging, not a quick fix.

When will I feel a difference?

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Every body is unique. Some users report noticing changes in energy, focus, or overall well-being after a few weeks of consistent use, while others experience more gradual results. We recommend daily use for at least 30-60 days for cumulative cellular benefits.

Can I take GeneIII L-Ergothioneine with other supplements?

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Yes. L-Ergothioneine can be safely combined with most supplements and multivitamins. However, if you’re pregnant, nursing, or taking prescription medications, we recommend consulting with a healthcare professional before use.

How is GeneIII tested for quality?

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Every batch is rigorously tested in-house and by independent third-party laboratories for purity, identity, and potency. We use SGS and other accredited labs to confirm our 99.99% purity standard. Certificates of Analysis (COAs) are available upon request.