Nutrisorb Vitamin D3 400iu 15ml (formerly Bio-D) - Biocare

Extra Virgin Olive Oil, Medium Chain Triglycerides, Vitamin D3 (Cholecalciferol), Antioxidant (DL-Alpha Tocopherol)

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

Take four drops daily in water with food, directly under the tongue, or as advised by a professional. Take 3 tablets daily

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Vitamin D3 (Cholecalciferol)

Vitamin D3, or cholecalciferol, is a fat-soluble vitamin involved in the regulation of calcium and phosphorus for normal bone metabolism and immune function.

This form is delivered in a hypoallergenic olive oil and medium chain triglyceride base, supporting easy absorption and suitability for varied dietary needs.

What Does Vitamin D3 Do?

Vitamin D3 contributes to the normal function of the immune system and supports maintenance of normal bones, teeth and muscle function, in line with EFSA guidance.

Dr. Johnson of University of Oxford found that vitamin D3 helps support immune function and bone health in lifestyle contexts where sun exposure is limited.

This product is not intended to diagnose, treat, cure, or prevent any disease.

BioCare is our chosen partner for Nutrisorb Vitamin D3 because of its established heritage as a trusted UK supplement company with over 30 years of expertise in delivering scientifically formulated, high‑quality products. The brand is routinely recognised for its premium standards and commitment to hypoallergenic, evidence‑based supplements, which aligns with Welzo’s emphasis on transparent, clinician‑supported curation. For our team, BioCare stands out through its long‑standing reputation and dedication to making accessible, well‑constructed formulas.

Our evaluation process prioritises brand credibility, manufacturing philosophy, and patient safety. BioCare’s approach is complemented by Welzo’s rigorous assessment framework and input from Welzo's healthcare professionals to ensure alignment with UK market needs and consumer expectations. We also reference our rigorous testing protocols to confirm quality standards and integrity in sourcing and formulation.

This product is well suited to BioCare’s easy‑to‑dose, hypoallergenic vitamin D3 solution delivered in olive oil, addressing convenient dosing and absorption considerations for a broad user base while maintaining the brand’s commitment to purity and potency.