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DUOLIFE D3 in Nigella Oil 60cap.



06 October 2023

DUOLIFE D3 in Nigella Oil is a food supplement from the Pure Formula line containing vitamin D3 suspended in Nigella oil in a concentrated dose, enclosed in the form of vegan “softgel” tapioca capsules.

Vitamin D helps maintain healthy bones and teeth and supports the proper functioning of the immune system. Vitamin D contributes to normal absorption/use of calcium and phosphorus.

Vitamin D contributes to the maintenance of normal muscle function.

The presence of the Nigella oil in the product, which is characterised by high content of unsaturated fatty acids, mainly from the omega-6 and omega-9 group, fosters optimal absorption of vitamin D3 from the capsule.

Nigella oil comprises therefore a “biological background” for the active ingredient - vitamin D3.



  • people wishing to support proper functioning of the immune system;

  • those wishing to maintain normal function of the locomotor system;

  • those wishing to support the optimal health of bones and teeth;

  • those wishing to support the optimal functioning of muscles;

  • people wishing to support proper blood coagulation processes;

  • people wishing to support maintaining correct calcium and phosphorus levels in the body;

  • people recovering from bone fractures or long-term immobilisation;

  • active people that participate in sports;

  • people who want to maintain a normal body weight;

  • elderly people;

  • people with inadequate sun exposure.




Simple, targeted composition

– based on the main active ingredient with known properties and concentrated dose.

Additional important ingredient

– an extraordinarily valuable black seed oil as the “biological background” for vitamin D3.

Product with comprehensible purpose

– health statements can be found on the label, which makes it easier to recommend the supplement.


Guarantee of the declared active ingredients content.


Naturally sourced ingredients.


No artificial fillers, preservatives or unnecessary additives.

Convenient form of use

– the form of a vegan “softgel” capsule made of tapioca starch.

Recyclable packaging 

(You will find more information on recycling in the "Storage" tab).


The product is lactose-free.


The product is GMO-free.


– suitable for people with gluten intolerance.

The product is suitable for vegans and vegetarians

– thanks to the ingredients used and the vegan capsule shell made of tapioca starch.


Multilingual label.




Vitamin D3 (cholecalciferol) also known as the “sunshine vitamin”. It is a compound belonging to fat-soluble vitamins. Unlike other vitamins, it can be synthetised by the body, albeit in limited amounts. Hence, this process depends on the time of exposure to solar radiation and occurs mainly in the skin, so vitamin D3 level in the body may depend on the lifestyle and the geographical residence, air pollution, season of the year, time of the day or skin complexion. Regular exposure of the body to the sunshine is necessary to ensure the proper level of vitamin D3 in the body. When the access to solar radiation is limited, it is recommended to supplement the vitamin level in the diet. 


  • Vitamin D helps maintain healthy bones and teeth.

  • Vitamin D helps maintain correct calcium level in the blood.

  • Vitamin D contributes to normal absorption/use of calcium and phosphorus. 

  • Vitamin D contributes to the maintenance of normal muscle function; 

  • Vitamin D contributes to normal function of the immune system. 

  • Vitamin D participates in the cell division process.


The food supplement also contains oil from seeds of nigella, which synergistically supports the action of the active ingredient – vitamin D3. The presence of the Nigella oil is a particularly important distinguishing feature, as the oil itself comprises an important ingredient with properties that support body functioning. It is one of the most valuable vegetable oils. 

Nigella oil is obtained from the seeds of nigella (Nigella sativa) seeds, which is native mainly to Eastern Europe and the western part of Asia. The properties of the Nigella oil have been known since the ancient Egypt, where it’s been called the “Pharaoh's gold”. The composition of the Nigella oil includes mainly essential unsaturated fatty acids (EFA). Among them, we can distinguish around 60% content of linoleic acid (omega-6) and about 25% of oleic acid (omega-9) and about 1% of alpha-linolenic acid (omega-3). Moreover, we can distinguish vitamin E, biotin, beta-carotene, mineral salts: iron, calcium, potassium, phosphorus, copper, antioxidants, sterols, and active compounds, namely thymoquinone, thymohydroquinone, p-Cymene, carvacrol, thymol.


Ingredients – Contents per one capsule: Cold pressed Nigella sativa seed oil – 500 mg, Vitamin D3 (cholecalciferol) – 25 µg (500% NRV*). Coating ingredients: tapioca starch, humectant: glycerol; water.

* NRV – Nutrient Reference Value for an average adult.




Storage: store the product at room temperature, out of the reach of children.

Care for the environment with DUOLIFE and sort waste!

After finishing the product, think about the environment. Throw the label, foil lid and the container with the cap into the appropriate waste containers. You can use the below table.


Environmental table:





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