Zinc & Selenium
+ Cofactors


Zinc & selenium with vitamin C and vitamin B6 as cofactors. 15mg of organic zinc chelate, 100µg of bioactive selenium in the form of sodium selenite, 25mg of bioactive vitamin B6 in the form of activated pyridoxal 5′-phosphate and 100mg of vitamin C derived from non-GMO corn. 2x120 capsules
  • Bioactive complex of zinc, selenium, vitamin C and B6 (PLP)
  • Trace elements and cofactors
  • 100µg selenium, 15mg zinc, 100mg vitamin C and 25mg B6 per capsule
  • Including: vitamin C derived from non-GMO corn
  • Our most concentrated vitamin C (99%+ pure)
  • With zinc and vitamin C to support the immune system
  • Coordinated balance of bioactives for optimal absorption
  • Vegan, non GMO, fructose and lactose free
Customize Zinc & Selenium<br>+ Cofactors
2 x Zinc & Selenium Plus Cofactors   + €0.00

* Required Fields

€18.81 €19.80

Delivery : 1–3 business days

Incl. VAT, excl. Shipping

€299.52 / 1kg

Premium Bioactive Ingredients

  • 100µg of selenium per capsule
  • Bioactive selenium in the form of sodium selenite
  • Fully available for selenium enzymes
  • Zinc in the form of zinc bisglycinate, a highly bioavailable zinc chelate (highest bioavailability of all forms of zinc)
  • Vitamin B6 in the form of pyridoxal 5′-phosphate, a directly bioactive coenzyme
  • Virtually 100% pure vitamin C (99%+ concentrated)
  • Vitamin C obtained through a state-of-the-art, innovative manufacturing process from non-GMO corn
  • Final product is free from both corn and fructose and contains no solvent residues
  • An optimally effective complex due to ideal nutrient ratio

How are we different?

The nutrient forms in our Zinc & Selenium Plus Cofactors have been carefully chosen:

Our sodium selenite is an ultra-pure, pharmaceutical grade compound. Sodium selenite is incorporated directly into selenoproteins, which are special proteins regulated through selenium metabolism, preventing it from accumulating in the body. In contrast, the incorporation of organic selenium into proteins is not regulated, which can lead to very high selenium levels if intake is consistent. Taken as recommended, sodium selenite is a very safe form of selenium.

Our zinc bisglycinate is an organic zinc chelate in which the zinc is bound to L-glycine, an amino acid. Current research shows that zinc bisglycinate has the highest bioavailability of all forms of zinc. We have included zinc bisglycinate here in the form of an ultra-pure active ingredient from Germany.

Our vitamin B6 supplies the directly bioactive coenzyme of vitamin B6, pyridoxal 5′-phosphate. This form of B6 does not require any conversion by the body to be active in its countless enzymatic reactions.

Our vitamin C, derived from non-GMO corn, is highly concentrated (99.9%+ pure) and does not contain any corn after manufacturing.

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 jars.


  • 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



This essential trace element plays a crucial role in maintaining the immune system and contributes to metabolism, fertility, cell division and DNA synthesis as well as keeping eyes, hair and nails healthy.


This essential trace element is a component of more than 25 enzymes involved in a variety of important reactions in the body. Selenium is important for maintaining normal functioning of the immune system and protecting cells from oxidative stress and also contributes to thyroid function and fertility as well as the maintenance of hair and nails. Sodium selenite exhibits a somewhat lower absorption rate than organic selenium compounds but makes up for this shortcoming with its very high bioactivity. The selenium in sodium selenite is directly and exclusively available for the formation of selenoproteins; it is not incorporated into any other proteins, which means that sodium selenite is regulated through selenium metabolism, ensuring that excess selenium is immediately excreted to prevent it from accumulating in the body.

Vitamin B6

Vitamin B6 (pyridoxine) is the precursor of the active coenzyme pyridoxal phosphate (also known as pyridoxal 5′-phosphate, P5P and PLP), one of the most important coenzymes for humans. Vitamin B6 is important for the synthesis of the amino acid cysteine and contributes to normal homocysteine, glycogen and protein metabolism as well as the normal functioning of the immune system. Vitamin B6 is also important for the nervous system and energy metabolism.

Vitamin C

Vitamin C protects cells from oxidative stress and contributes to the reduction of tiredness and fatigue, normal cognitive function, normal energy metabolism, normal functioning of the immune and nervous systems and normal collagen production for normal functioning of bones, teeth and skin.


Recommended Dosage

Take 1 capsule (100µg selenium, 15mg zinc, 25mg vitamin B6, 100mg vitamin C) with 200ml water daily.

Daily Requirements

According to EFSA, the daily requirements for these four nutrients are: 10mg zinc, 55µg selenium, 80mg vitamin C, 1.4mg vitamin B6.

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: Vitamin C, Pyridoxal 5′-Phosphate, Zinc Bisglycinate, Sodium Selenite.
Capsule shells: Hydroxypropyl Methylcellulose.
Contains: 120 capsules

Ingredients/Capsule % NRV*
Sodium Selenite 22.3mg -**
of which selenium 100µg 182
Zinc 15mg 150
Vitamin C 100mg 125
Vitamin B6 (P5P) 25mg 1,786

* % Nutrient Reference Value 
** no reference available

Per capsule: 100µg selenium, 15mg zinc, 100mg vitamin C, 25mg vitamin B6
Per jar: 12,000µg selenium, 1,800mg zinc, 12,000mg vitamin C, 3,000mg vitamin B6 

Product Details

German Pharmaceutical Number (PZN) 16627706
Production In-house production in Europe, 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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