Vitamin C, vitamin D3 and zinc
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Vitamin C 1000 mg, vitamin D3 25 µg and zinc 15 mg in 1 tablet of Immuno Support from Stivits. Vitamin C contributes to the normal function of the immune system. Direct from the manufacturer, made in Europe.

Which products with vitamin C, vitamin D and zinc the Stivits shop has

The Stivits shop has three main products for the immune system. Immuno Support: vitamin C 1000 mg, vitamin D3 25 µg (1000 IU) and zinc 15 mg in 1 tablet; adults take 1 tablet a day, and one pack lasts 90 days. Grippan Grapefruit MAX: 8 g sachets with vitamin C, vitamin D3, zinc and ginger. Echinacea Root: 4:1 extract, 125 mg per tablet. Vitamin C contributes to the normal function of the immune system. Vitamin D contributes to the normal function of the immune system. Zinc contributes to the normal function of the immune system. A varied and balanced diet and a healthy lifestyle are important. More detail and sources: Vitamins for immune support: C, D3, zinc and selenium, how to compare doses.

How much vitamin and zinc is in a serving of Stivits products

Product, servingVitamin CVitamin D3ZincAlso in the servingHow to take
Immuno Support, 90 tablets, 1 tablet1000 mg25 µg (1000 IU)15 mgnoneAdults: 1 tablet a day, lasts 90 days
Grippan Grapefruit MAX by Stivits, 1 serving of 8 g330 mg33.3 µg8.3 mgGinger 500 mg, calcium 208 mg, N-acetyl-L-cysteine 20 mg, beta-carotene 2 mgAdults, as directed on the pack. Do not exceed the recommended daily dose.
Echinacea Root, 180 tablets, 1 tabletnonenonenoneEchinacea extract 4:1, 125 mgAdults: 1 tablet a day, lasts 180 days

Why Stivits

  • Direct from the factory. A European factory makes our supplements to our order, and we sell them ourselves: no wholesalers, no pharmacies.

  • Made in Europe, in a certified factory. GMP, HACCP and ISO 22000:2018.

  • Fast dispatch. We dispatch your order by the next working day.

  • Customer reviews. The Stivits shop is rated 4.9 out of 5 on Judge.me, based on 944 reviews. Data updated 6 November 2026.

Frequently asked questions about vitamin C, D3 and zinc

What is in Immuno Support, and what are the claims for its ingredients?

Immuno Support from Stivits contains three substances with EU-authorised claims about the immune system: vitamin C 1000 mg, vitamin D3 25 µg (1000 IU) and zinc 15 mg in 1 tablet. Vitamin C contributes to the normal function of the immune system. Vitamin D contributes to the normal function of the immune system. Zinc contributes to the normal function of the immune system. A varied and balanced diet and a healthy lifestyle are important.

How does Immuno Support differ from Grippan?

Immuno Support from Stivits is an everyday tablet: vitamin C 1000 mg, vitamin D3 25 µg, zinc 15 mg. Grippan Grapefruit MAX is an 8 g sachet that you dissolve in warm water: vitamin C 330 mg, vitamin D3 33.3 µg, zinc 8.3 mg and ginger 500 mg. One pack of tablets lasts 90 days.

What is inside Grippan?

One 8 g serving of Grippan from Stivits contains ginger 500 mg, vitamin C 330 mg, vitamin D3 33.3 µg, zinc 8.3 mg and calcium 208 mg. It also has lemon and grapefruit juice, grapefruit seed extract, N-acetyl-L-cysteine 20 mg and beta-carotene 2 mg. Ginger supports the body's natural defences.

How to take Grippan?

Adults take Grippan Grapefruit MAX from Stivits as directed on the pack. Dissolve the 8 g serving in 200–250 ml of warm water, 30–40 °C. Do not use if you are hypersensitive to any of the ingredients. Not recommended during pregnancy or breastfeeding.

What is echinacea for?

Echinacea supports the body's natural defences. One tablet of Echinacea Root from Stivits contains 4:1 extract, 125 mg. Adults take 1 tablet a day, and one pack lasts 180 days.

What is in the immune system set?

Three Stivits products: Grippan Grapefruit MAX, Echinacea Root, 180 tablets, and Omega-3 Fish Oil 1000 mg + Vitamin E, 90 soft capsules. Two capsules of omega-3 from Stivits contain 360 mg of EPA and 240 mg of DHA. EPA and DHA contribute to the normal function of the heart. The beneficial effect is obtained with a daily intake of 250 mg of EPA and DHA.

How quickly do you dispatch an order?

Stivits dispatches your order by the next working day.

Who makes Stivits vitamins?

Stivits is a brand of the Estonian company HYPERPHARM OÜ (Tallinn). The supplements are made in Europe, in the EU, in a factory certified to GMP, HACCP and ISO 22000:2018. Stivits sells direct from the factory, with no wholesalers or pharmacies in between.