From Fermentation

100% natural, reduced and bioactive glutathione derived through fermentation. High-dose with 300mg per capsule. Premium active ingredient from Japan in ultra pure pharmaceutical quality, free from additives and impurities. Produced with high-grade kefir yeast rather than mould. Ultra-pure capsule shells, no carrageenans or PEG. 60 capsules
  • Glutathione as bioactive, reduced L-glutathione
  • The body's own active form of glutathione
  • Full 300mg L-glutathione per capsule
  • 100% natural, derived from fermentation
  • Non-GMO, no additives and vegan
  • HPMC capsule quality: 100% without carrageenan and PE
60 capsules

Delivery : 1–3 business days

Incl. VAT, excl. Shipping

€827.78 / 1kg
In stock

Premium Bioactive Ingredients

  • Reduced L-glutathione in bioidentical form
  • Natural, bioactive form of glutathione
  • Premium raw material obtained by fermentation ( GMO-free)
  • Crystalline form with particularly good solubility
  • Vegan and without additives

How are we different?

The majority of glutathione preparations available on the market are synthetically produced. Our reduced L-glutathione, on the other hand, is obtained 100% from glucose by means of fermentation. This process is completely GMO-free. The result of the complex, highly pure manufacturing process is L-glutathione in its reduced and directly bioactive form.

For the capsule shells we use custom-made HPMC capsules that, unlike most other HPMC and pullulan capsules on the market, are 100% free from controversial additives such as carrageenans and PEG. We then package this product in environmentally friendly amber glass.


  • Premium active ingredients in their purest form
  • Sourced directly from the world’s best producers
  • Our select raw materials are the basis of all our formulations
  • Complete avoidance of all unnecessary additives and adjuvants
  • Exclusive use of valuable natural ingredients for additives
  • We voluntarily declare all ingredients
  • All extractions performed without the use of chemical solvents
  • Custom production when necessary, in order to achieve the highest possible level of purity
  • Independent laboratory testing available on product pages
  • Raw materials sourced only from premium suppliers who are committed to fair working conditions
  • Amber glass and compostable pouches used for packaging
  • Vegan capsule shells, free from PEG and carrageenans
  • Packaged in the EU according to HACCP, GMP and ISO 22000:2018 standards
  • Stored in non-toxic containers
  • Shipped in mineral oil-free boxes
  • All products guaranteed 100% free from magnesium stearate, silicon dioxide, nanoparticles (no legal opportunism), genetic engineering, artificial colours and flavours, titanium dioxide and added sugar & sweeteners


Glutathione: a Potent Antioxidative

Glutathione is the most important cellular counterpart to oxidative stress. Glutathione intercepts radicals, protects the brain, prevents lipid peroxidation, and plays a role in detoxification. Glutathione deficiency is one of the main factors in cell ageing and can cause various symptoms including tiredness and low immunity.

Glutathione is not only a potent antioxidant itself. It is also required to reactivate other antioxidants such as vitamins C and E, as well as α-lipoic acid. For this reason, glutathione is sometimes referred to as the "master" antioxidant.


Recommended Dosage

Take 1 capsule (300mg L-glutathione) on an empty stomach with 200ml water daily.

Daily Requirements

There is no official daily recommended intake for glutathione.

Food Supplement

Do not exceed the recommended dose. Food supplements cannot replace a balanced and varied diet. Keep out of reach of children.


Store in a cool, dry place away from direct sunlight and heat.


Ingredients: L-Glutathione.
Capsule shells: Hydroxypropyl Methylcellulose.
Contains: 60 Capsules

Ingredients / Capsule % NRV*
L-Glutathione 300mg -**

* Nutrient Reference Value 
** no reference available

Product Details

Ingredients L-Glutathione.
Capsule shells: Hydroxypropyl Methylcellulose.
Active Ingredient Reduced L-Glutathione
German Pharmaceutical Number (PZN) 16130147
Origin 100% natural glutathione derived through fermentation. Premium active ingredient from Japan.
Production Bottling and encapsulation in the EU according to HACCP, GMP / ISO 22000:2018 standards
Finished products packaged in amber glass jars, and stored in non-toxic containers
Shipping in mineral oil-free boxes
Capsules Plant-based cellulose (HPMC). Vegan
Premium HPMC quality: Free from controversial additives such as carrageenans and PEG
Packaging Amber glass jar to protect against light and oxidation (free from plasticisers and BPA)

Laboratory Tests

The purity of our formulas is important to us. This is why we have both our raw ingredients as well as our finished products extensively tested by independent laboratories to confirm purity and active ingredient content. Here, we have provided the results of some of the tests carried out on this product.

Sunday Natural

Our Philosophy

For thousands of years, cultures all over the world have been using medicinal plants and nutritious foods to naturally foster and maintain vitality and good health.

With our products, we try to emulate this ancient wisdom as much as possible.

Consequently, our philosophy is simple: everything we do meets the highest standards of quality and purity; our focus is on organic and natural ingredients.

We follow this philosophy with meticulous care on all levels and down to every last detail.

Learn more

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