Product images are for presentation purposes only and do not create contractual obligations.

Vitamin D and Cofactors Complex, 30 capsules

Vitamin D and Cofactors for Bone, Muscle, and Dental Health. Supports Chronic Fatigue, Anxiety, and Autoimmune Conditions. 30 Capsules.

Product images are for presentation purposes only and do not create contractual obligations.

10.90

Fast delivery through top-tier local couriers
Shop safely with secure Stripe payments
Not sure yet? You can save this product for later.
Add it to your favorites list!

Why it's the right choice

  • Supplement with vitamin D, combined with vitamin K2 and magnesium for optimal absorption.
  • One capsule provides 3000 IU of vitamin D3, 1500% of the NRV.
  • Supports the health of bones, muscles, and teeth.
  • Helps reduce the risk of osteoporosis.
  • Supports the prevention of bone demineralization.
  • Contributes to stronger immunity and overall resilience.
  • Useful in chronic fatigue, anxiety, and neurodegenerative conditions.
  • Helps support the reduction of chronic inflammation.
  • Free from gluten, soy, lactose, flavors, or chemical additives.

Ingredients

  • Magnesium citrate – 1000 mg (providing 90 mg elemental magnesium).
  • Vitamin D3 (cholecalciferol) – 75 mcg / 3000 IU, in the form of microencapsulated vitamin D, obtained by spray-drying an emulsion of cholecalciferol (dissolved in MCT) and modified corn starch, with added antioxidants: alpha-tocopherol and sodium ascorbate.
  • Vitamin K2-MK7 (menaquinone-7) – 50 mcg.
  • Other ingredients: microcrystalline cellulose (bulking agent).
  • Capsule shell: gelatin.

Each capsule provides:

  • 3000 IU vitamin D3 – 1500% NRV
  • 90 mg elemental magnesium – 24% NRV
  • 50 mcg vitamin K2-MK7 – 66% NRV

*NRV – Nutrient Reference Values according to Regulation (EU) No. 1169/2011.

Does not contain lactose, gluten, soy, magnesium stearate, artificial sweeteners, or chemical additives.

Vitamin K2 is carried on corn-derived maltodextrin and is gluten-free.

Vitamin D3 powder contains modified corn starch and is gluten-free.

Nutritional Information Per 100 g product
Energy value 1409 kJ / 331.7 kcal
Fat 0.13 g
 of which saturated fatty acids 0.09 g
Carbohydrates 81.78 g
 of which sugars 5.48 g
Protein 0.35 g
Salt 1.14 g

*The salt content comes naturally from sodium.

Directions for use

  • 1 capsule per day, during meals or as recommended by a specialist.

Warnings

  • Pregnant or breastfeeding women, individuals with kidney conditions, hypercalcemia, hypercalciuria, as well as patients undergoing anticoagulant treatment should consult a specialist before use.
  • Not recommended for individuals with hypersensitivity to any of the ingredients used.

Storage conditions

  • In the original packaging, tightly closed, in a dry place, protected from light and heat. Best consumed before the expiration date indicated on the packaging (see Exp and Lot on the cap).
Share this product

3 Key Ingredients Supporting the Health of Bones, Muscles, and Teeth! Vitamin D & Cofactors Helps Prevent Bone Demineralization

Vitamin D & Cofactors is a food supplement that combines vitamin D3 with vitamin K2 and magnesium, offering comprehensive support against bone tissue loss. One of the main roles of vitamin D is maintaining normal calcium and phosphorus levels in the blood. It helps the body absorb calcium — essential for building and maintaining strong bones — while also supporting immune function and endocrine balance. Vitamin K2 helps prevent calcium deposits in blood vessels and soft tissues, promotes proper bone mineralization, supports normal cholesterol levels, helps reduce inflammation, and contributes to normal blood coagulation. Magnesium plays a key role in activating vitamin D and supports muscle health and nervous system function.

One Capsule of Vitamin D & Cofactors Provides

  • 3000 IU Vitamin D3 – 1500% NRV
  • 90 mg Elemental Magnesium – 24% NRV
  • 50 mcg Vitamin K2-MK7 – 66% NRV

What Are Cofactors?

Living organisms rely on countless chemical reactions that make life possible, break down food, and enable nutrient absorption. Enzymes act as catalysts in these reactions, and their efficiency influences how well essential nutrients are absorbed. Vitamin K2 and magnesium act as cofactors for vitamin D3, meaning they support its metabolism and absorption while providing additional specific health benefits.

Why Might You Still Be Low in Vitamin D?

Sometimes blood tests reveal vitamin D deficiency even when supplementation is used. One explanation may be deficiencies in other nutrients that affect vitamin D metabolism. Magnesium, for example, helps activate vitamin D, which in turn regulates calcium and phosphorus absorption, supporting bone density and growth.

Research suggests that magnesium supplementation may significantly improve response to vitamin D in certain conditions, and higher magnesium intake has been associated with a lower risk of vitamin D deficiency in the general population.

The Importance of Magnesium for Bone Health

Magnesium is involved in numerous physiological processes, including muscle and nerve function, blood sugar regulation, blood pressure balance, and the production of proteins, bone tissue, and DNA. Individuals with higher magnesium intake tend to have greater bone mineral density, which may help reduce the risk of fractures and osteoporosis. Magnesium deficiency is more common in people with gastrointestinal disorders (such as Crohn’s disease or celiac disease), type 2 diabetes, long-term alcohol use, and older adults.

The Benefits of Vitamin K2 for the Skeletal System

Vitamin K helps regulate vitamin D activity and maintain calcium balance in the body. Through specific biochemical reactions, it activates proteins that direct calcium from the bloodstream into bones and teeth, where it is needed most.

How Does Vitamin D & Cofactors Support You?

Vitamin D3

  • Helps reduce the risk of osteoporosis.
  • Supports bone mineral density.
  • Helps prevent dental issues.
  • Strengthens immunity and overall resilience.
  • Supports management of autoimmune conditions (such as Hashimoto’s thyroiditis, asthma, psoriatic arthritis, psoriasis, lupus, multiple sclerosis, type 1 diabetes, and inflammatory bowel disease).
  • Supports cardiovascular health, including blood pressure balance.
  • Helps in chronic fatigue, anxiety, and neurodegenerative conditions.

Magnesium

  • Supports muscle, bone, and dental health.
  • Helps manage stress and reduce fatigue, anxiety, and muscle tension.
  • Supports healthy digestion and intestinal transit.
  • Contributes to normal immune function.

Vitamin K2

  • Supports bone health and mineralization.
  • Helps prevent calcium deposits in arteries and soft tissues.
  • Contributes to osteoporosis prevention.
  • Supports normal cholesterol levels.
  • Helps reduce inflammation.
  • Contributes to normal blood clotting.

Vitamin D & Cofactors is a food supplement. 

Food supplements should not replace a varied, balanced diet and a healthy lifestyle. Do not exceed the recommended daily dose. Keep out of reach and sight of young children.

Manufacturer / Notification Holder: Zenyth Pharmaceuticals SRL, Alexandru cel Bun, Neamț County, Romania, Phone: +40 233 222 203. Product registered and notified with the Ministry of Health, notification no. 6432/2024.

Frequently Asked Questions about Vitamin D and Cofactors Complex, 30 capsules

Didn’t find the answer to your question? Please write to us here and you’ll receive a reply by email.

Related products

L-Glutamine, 120 powder

L-Glutamine powder, 100% plant-based, supports gastrointestinal health, immune function, and muscle recovery. Alkalizing and antioxidant. 120 g.

17.90

Added to your favorites

Inulin FOS, 120 g powder

Inulin FOS, prebiotic fibers and fructo-oligosaccharides for intestinal flora balance, digestion, healthy transit, and weight management. 100% natural, 120 g.

8.90

Added to your favorites