OPITAC™Glutathione
Reduced

Unparalleled quality
and consistency —
produced in Japan

Glutathione:
An essential factor

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Located in every cell of our body, Glutathione is a tripeptide comprising glutamic acid, cysteine, and glycine.

Time exposes the body to toxins and pollutants from inside and out. These, along with health, stress, and other factors can contribute to immune system deficiency.

As we age, the volume of glutathione maintained in the body reduces dramatically, and can benefit from supplementation.

Introducing
OPITAC™
Glutathione

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Has Antioxdant Ability
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Supports
Detoxification
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Supports Skin
Brightness
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Supports Liver Health and Immune Function

OPITAC™ Glutathione is L-Glutathione Reduced, widely noted for having antioxidant activity. As a supplement it’s taken to support detoxification, to brighten complexion,
and to maintain liver health and immune system strength.

OPITAC™ Glutathione is produced by KOHJIN Life Sciences, a subsidiary of Mitsubishi Corporation Life Sciences, which has been producing it consistently in GMP-certified manufacturing facility in Japan.

The OPITAC™
edge

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Produced according to strict Japanese quality control standards
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Process meets GMP
certification requirements, using non-GMO torula yeast fermentation
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Only Glutathione in the world to hold U.S. FDA GRAS-notified status*
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The most abundant, authoritative, and readily available library of clinical studies in its class

*As of November 1, 2023

Where is OPITAC™
Glutathione
produced?

OPITAC™ Glutathione is produced in KOHJIN Live Sciences facilities, located in Oita Saiki city in Japan.

KOHJIN Life Sciences was established at the Saiki Plant in 1962, beginning with yeast production through the fermentation of wood molasses. Since then, over half a century it has continued to improve the technologies related to microbial fermentation, with yeast serving as the core product, mainly for food ingredients and pharmaceuticals.

OPITAC™
Glutathione:
absorption through oral intake

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Breakthrough clinical findings proving that OPITAC™ Glutathione is absorbed in the human body by oral ingestion were first published following a study conducted in 2013 in collaboration with a team from Kyoto Prefectural University and Kyoto University.

Since then, this has been reaffirmed and expanded on in repeated peer-reviewed clinical studies.

Is OPITAC™
Glutathione Safe?

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Glutathione is a naturally-occurring tripeptide that is produced in the human body. OPITAC™ Glutathione is the world’s only glutathione that has been notified to the U.S. Food and Drug Administration (FDA) as GRAS.

OPITAC™ Glutathione is derived from torula yeast, which is also approved by the U.S. FDA as edible yeast.

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Reccomended
Dosage

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At least 100, and up to 500, milligrams daily, depending on the application and regulations applying in each country. Please contact us for more information.

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What does OPITAC mean?

OPITAC

It was inspired by the words “optimize” and “intact”.
Optimize, because the underlying mission guiding all of Kohjin’s research and development, as well as the fundamental function of glutathione in the body, is the optimization of health.

“TAC” commemorates the breakthrough human clinical study establishing single-dose, intact bodily absorption of glutathione for the first time, in 2013.

NEWS

02/27/2025

Announcement: NPEW2025

04/23/2024

Supplyside East 2023

03/25/2024

New Paper regarding Liver Health