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Glutathione-SR is a sustained-release form of glutathione that provides antioxidant support for the liver, brain, heart, lung, and eyes.* It also helps the body respond to physical activity.* NSF Certified for Sport®
$54 /60 Capsules
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Serving Size: 1 Capsules
Servings Per Container: 60
Thorne's Glutathione is NSF Certified for Sport®. It occurs naturally in cells and is a cofactor in dozens of enzymatic reactions involved in detoxification.* As an antioxidant, glutathione directly quenches several reactive oxygen species (free radicals).* The body's benefits from maintaining a normal level of glutathione include support for liver function, pulmonary function, immune function, bowel health, carbohydrate metabolism, cardiovascular health, cognitive health, and eye health.* Glutathione-SR is a breakthrough in glutathione supplementation because its sustained-release formula protects it from stomach acid and digestive enzymes, allowing for a slower release and a more steady level in the bloodstream of this essential nutrient.*
Glutathione is the most abundant anti-oxidant. Since training and competition create more oxidative stress and damage, athletes have a higher need for antioxidants. Exercise longer than 60-90 minutes significantly decreases glutathione levels in the blood, so supplementing is beneficial for endurance and ultra endurance events.
The liver is the body's largest reservoir for glutathione. A potent endogenous antioxidant, glutathione is essential for the liver's phase I and phase II detoxification.* However, negative lifestyle issues and adverse conditions that affect liver health can result in a decreased amount of glutathione in the liver.
Maintaining an optimal level of glutathione appears to be important for supporting cognitive function, especially during aging.* The normal process of aging is associated with a decrease in glutathione activity, which can result in increased oxidative activity.* Less than an optimum level of glutathione is observed in individuals experiencing a decline in cognitive function.* Conversely, individuals who live to 100 tend to have higher glutathione activity.*
Although a common mistaken belief is that glutathione is not well absorbed when it's taken orally, significant data confirms that glutathione is efficiently absorbed across the intestinal epithelium by a specific uptake system.*
Because athletes need to know their supplements are trustworthy and compliant, every batch of an NSF Certified for Sport® product is tested for compliance with label claims and to ensure the absence of nearly 300 substances banned by many major athletic organizations.
This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.
If pregnant, consult your health-care practitioner before using this product.
There are no known adverse interactions or contraindications at publication date.
4.7
Based on 43 reviews
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Cherie R.Verified Buyer Master antioxidant for the modern world I always feel better when I take glutathione. Clearer and sharper. I like the convenience of sustained release, too. Published date 01/10/26 Was this review helpful? 0 0
Cynthia A.Verified Buyer ? No side effects but also unsure if it’s working Published date 01/08/26 Was this review helpful? 3 1
Diane G.Verified Buyer Wow, love this product! Within a few doses, noticed difference in my gut health and facial skin is definitely firmer. Published date 12/22/25 Was this review helpful? 2 0
Kristi G.Verified Buyer Thx Trying to fight off the effects of Tylenol post surgery. Published date 12/14/25 Was this review helpful? 0 0
Scott L.Verified Buyer Who knows? It’s something I can’t really feel Published date 12/08/25 Was this review helpful? 1 0
Derived From Natural Flavors Derived From Natural Colors Gluten Free Dairy Free Soy Free
Take 1 capsule two to three times daily or as recommended by your health-care practitioner.
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