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A sustained-release form of one of the body's most important antioxidant and detoxification factors. (NSF Certified for Sport®)

Provides antioxidant support for the liver, brain, heart, lung, and eyes, and helps the body respond to physical activity.


How to use

Take 1 capsule two to three times daily or as recommended by your health professional.


Serving Size: 1 Capsule
Servings Per Container: 60
Expiry Date: 31 October 2024

Key Ingredients

  • Glutathione [Reduced] (175mg)

Other Ingredients: Calcium Laurate, High and Low Viscosity Hydroxypropyl Methylcellulose, Hypromellose Capsule, Leucine, Magnesium (Citrate), Silicon Dioxide.


Allergy Warning
This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.

If pregnant, consult your health professional before using this product.

There are no known adverse interactions or contraindications at publication date.

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  • The Master Antioxidant

    One of the body's most important antioxidants, Glutathione helps our bodies fight oxidative stress and provides protection against numerous diseases and conditions.

  • Liver and Detox

    Glutathione binds to heavy metals, chemicals, and other toxic substances, making them more water-soluble so they can be removed through urine or stool.

  • Beneficial for Athletes

    Athletes have a higher need for antioxidants because endurance exercise creates more oxidative stress and significantly decreases glutathione levels in the blood.

Key Ingredients

The Good Stuff


Glutathione is often referred to as the master antioxidant because it can be found in nearly every single cell in the body and is a cofactor in dozens of enzymatic reactions involved in detoxification.

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. Poor nutrition, stress, illness, environmental toxins, and even aging can lead to an overall decline in glutathione.

A common mistaken belief is that glutathione is not well absorbed when it's taken orally. However, significant data confirms that glutathione is efficiently absorbed across the intestinal epithelium by a specific uptake system.

Besides being NSF Certified for Sport®, Thorne’s 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 steadier level in the bloodstream of this essential nutrient.

NSF Certified for Sport®

The Thorne Difference

Because an athlete needs to know that his or her 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 more than 200 substances banned by many major athletic organizations, including stimulants, narcotics, steroids, diuretics, beta-2 agonists, and masking agents. 

Even if you're not an athlete, knowing what you're putting into your body is essential. In addition to NSF, we conduct 4 rounds of testing for 760 contaminants, ensuring that the final product contains only what you need for optimal body function.

Customer Reviews

Based on 5 reviews
cyrus j.
Love it

I keep coming back to this brand

Geraldine D.

Amazing product

Tonya K.
I switched to this

Switched to this from a liposomal glutathione product, and now I take one capsule instead of two for about the same cost.

Andrea R.
Want to love

If I’d ever receive my order I know I’d love it.

Veronica H.
All products I use

Every single one of my purchases are great. I have used Thorne for quite a while. The fact that they keep it simple and good matters. Quality is first, price and customer service are high on the list