Vitamin D3 15,000 IU
Premium high strength vitamin D supplement (15,000 IU) for your weekly routine
- 15,000 IU of vitamin D3 per capsule
- Simple and convenient: just one capsule per week as an alternative to daily dosing.
- With magnesium – a key mineral that supports the maintenance of normal bones.*
- Perfect for topping up your vitamin D levels during times of low sun exposure.
- Vitamin D contributes to the normal function of the immune system, muscles, bones, and teeth, as well as to maintaining normal calcium levels in the blood.*
Stock availableDelivery within 3-5 working days
incl. VAT.
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High-dose vitamin D: Power Support for the body
Our high-dose vitamin D makes it simple: just one capsule a week provides you with 15,000 IU of vitamin D3—equivalent to around 2,143 IU per day—for practical, no-fuss supplementation.
Why choose high strength vitamin D?
Contributes to the normal function of the immune system*
Supports normal absorption and utilization of calcium and phosphorus*
Plays a key role in maintaining strong muscles, healthy bones, and normal teeth*
With magnesium – a key mineral in vitamin D metabolism
Ideal for replenishing your vitamin D stores, especially in autumn, winter, or when sun exposure is limited
Discover our high-dose vitamin D today!
Vitamin D3 15,000 IU in detail
What our customers say
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100% Clean Label – no hidden extras
At BIOGENA, transparency isn’t just a promise – it’s our everyday practice. We follow the pure substance principle: 100% quality, mostly free from colorants, preservatives, and technical additives. The result? Outstanding tolerability (97%) and a recommendation rate of 95% – confirmed by over 18,000 doctors, therapists, and more than half a million customers.
EVERY batch: independently tested
Active ingredient content – guaranteed
100% free from artificial colors/flavors, titanium dioxide, GMOs, nanoparticles, magnesium stearate
In-house production in Salzburg (BIOGENA Good Health World)
Premium raw materials sourced directly from global market leaders
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What sets us apart
For us, knowledge is more than just information – it’s inspiration. We aim to make health tangible, share what we know, and pass on our passion for it. At the same time, we act with responsibility for our environment – with conviction and heart.
Independent family business, led by founder Dr. Albert Schmidbauer
100% Austrian science in every product
Handcrafted production – uncompromising since 2006
Eco-friendly packaging in the BIOGENA GreenPE bottle
Research & development at the highest level – with the largest scientific team in the industry
Double Climate Positive
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Production of our premium supplements
At BIOGENA, quality knows no compromises. From raw material sourcing to research and development, all the way to our in-house manufacturing at BIOGENA Good Health World in Koppl near Salzburg – every step is transparent and traceable.
Brand-name raw materials with certified quality seals
EVERY batch independently tested by the German LEFO Institute
Certified according to FSSC 22000
Discover what suits you
Show allFAQs
Frequently asked questions about high-strength vitamin D supplementation
Laboratory analyses & further product information
LEFO-Certificate Vitamin D3 15.000 - p-53633
LEFO-Certificate Vitamin D3 15000 - p-55104
LEFO-Certificate Vitamin D3 15000 - p-57089
LEFO-Certificate Vitamin D3 15000 - p-57240
LEFO-Certificate Vitamin D3 15000 - p-58202
LEFO-Certificate Vitamin D3 15000 - p-58211
LEFO-Certificate Vitamin D3 15.000 - p-60247
LEFO-Certificate Vitamin D3 15.000 - p-60246
LEFO-Certificate Vitamin D3 15.000 - p-60245
LEFO-Certificate Vitamin D3 15.000 - p-60289
Uncompromising quality
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