Jarrow Formulas Vitamin D3 helps bones and immunity, with potent cholecalciferol in a premium softgel from a science-led brand you can trust.

Available Sizes & Variants:

100 softgels - convenient daily dose

Benefits & Features:

• Cholecalciferol delivers vitamin D in a bioavailable softgel.
• Supports bone health and immune function.
• Daily use helps maintain healthy vitamin D levels, supporting muscle function and mood.
• Free from common allergens and produced under strict quality controls.
• What really makes this vitamin d supplement product stand out is the potent cholecalciferol dose with a pure olive oil carrier, all manufactured to current good manufacturing practice standards, and backed by a science driven brand heritage.

Jarrow Formulas has built a reputation on science focused, high quality supplements, and this vitamin D3 softgel reflects that heritage. The formulation uses extra virgin olive oil as a carrier to aid absorption and keeps wheat, gluten, soy, dairy, eggs, fish, peanuts, tree nuts and sesame out, so it's allergen-conscious. The brand's production follows strict quality controls in facilities that emphasise purity. Dr. Holick of Boston University notes that vitamin D3 is the form most effective at raising serum vitamin D.

Other Ingredients - Extra virgin olive oil and softgel (bovine gelatin, glycerin, purified water).
Free From - No wheat, gluten, soybeans, dairy, egg, fish/shellfish, or peanuts/tree nuts.

• GTIN: 790011300052
• Manufacturer: Jarrow Formulas
• Categories: Back to School Supplements & EssentialsCHECKOUT UPSELLJarrow FormulasNew ArrivalsVitamin D Supplements, Tablets & Gummies
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the 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 30 days in the same original and unopened packaging. Subject to T&C's.

Consume one softgel daily or every other day with a meal that includes fat.

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

The Active Ingredient Is: Vitamin D3 (Cholecalciferol)

Vitamin D3, also known as cholecalciferol, is a fat-soluble nutrient essential for supporting normal bone and immune system function. This formulation provides cholecalciferol in a high-potency softgel alongside olive oil to aid absorption.

It is supplied as Vitamin D3 derived in a form that benefits from lipophilic absorption, with the softgel and olive oil helping to optimise uptake.

What Does Vitamin D3 Do?

Vitamin D3 aids in calcium absorption and bone mineralisation, contributing to healthy bones and overall skeletal support. It also supports immune function and muscle performance, in line with EFSA and NHS-consistent claims.

Dr. Holick of Harvard University found that vitamin D3 contributes to maintaining normal immune and bone health through its role in calcium management and mineralisation.

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

Dietary supplements are not a replacement for a balanced diet. Do not take more than the recommended amount. Keep in a cool, dry area away from light and heat. Ensure they are out of children's reach and view.

Jarrow Formulas stands out as our trusted choice for this vitamin D3 supplement because this brand consistently delivers production excellence and science‑led formulation. Their long‑standing reputation for quality manufacturing and a commitment to rigorous in‑house testing underpin our confidence in purity and potency.

This brand’s focus on cGMP‑compliant facilities and allergen‑conscious formulations aligns with Welzo’s standards for safety and transparency. Their allergen‑aware approach, combined with clear ingredient sourcing practices, reinforces trust with customers seeking a pure vitamin D3 option.

Compared with other brands, Jarrow Formulas’ heritage as a science‑driven innovator and their proven manufacturing discipline set them apart in reliability and consistency. Our expert team evaluated them for their manufacturing discipline and ability to support a high‑potency 125 mcg (5000 IU) softgel, ensuring it meets the quality we expect. This brand was evaluated by our expert team of doctors, nurses, and nutritionists for compliance with the standards we enforce.