Vitamin D3 helps maintain healthy vitamin D status and bone health, and keeps the immune system resilient and everyday vitality feeling steadier. As a vitamin D supplement, it supports immune resilience and strong bones, with a quick daily capsule for busy lives. This professional-grade blend uses olive oil as a carrier and is free from wheat, gluten, dairy, GMOs, and artificial additives. Neuro Biologix stands for purity and transparency, delivering consistently high quality.

Available Sizes & Variants:

100 capsules – daily vitamin D3 supplement for adults seeking to maintain healthy vitamin D status.

Benefits & Features:

• Allergen free and easy to swallow.
• Supports immune function.
• Aids calcium absorption for bone health.
• Intended for daily use as part of wellness routines.
• Neuro Biologix champions purity and transparency, delivering consistently high quality.

Neuro Biologix has earned a reputation for professional grade supplements built on purity. This Vitamin D3 capsule contains 125 mcg (5000 IU) of cholecalciferol, carried in organic olive oil within a gelatin shell. The formula is free from wheat, gluten, dairy, soy, fish, shellfish and GMOs, with no artificial colours or additives. The brand champions transparency and strict quality standards, giving health minded adults confidence to include daily vitamin D into their routine. Some customers pair it with magnesium glycinate or probiotics for a holistic approach.

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.

Our Digestive Enzymes can be used regularly to help with digestive issues or as an occasional supplement for hard-to-digest meals.

Always start with a smidge! Take one capsule daily with food\, Then take two capsules together\, as directed by a certified healthcare practitioner. (See "low and slow" note below.)

For children and sensitive adults\, a smaller dose may be obtained by pulling apart the capsule and taking a portion of the contents.

Start low and slow: Smidge® supplements are premium\, pure and potent. Therefore\, it's critically important to start slowly\, with a lower dosage than recommended. For example\, a very small dose every other day\, or even once a week\, until you can determine how the supplement affects your body and what dosage feels right for you.

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

1. Supports bone health: Vitamin D3 is essential for the absorption of calcium and phosphorus, which are crucial for maintaining strong and healthy bones. Regular intake of Vitamin D3 can help prevent osteoporosis and other bone-related disorders.
2. Boosts immune system: Vitamin D3 plays a vital role in regulating the immune system, helping to fight off infections and diseases. It promotes the production of immune cells and enhances their ability to defend the body against harmful pathogens.

The Active Ingredient Is: Vitamin D3 (Cholecalciferol)

Vitamin D3, (or what you might call) cholecalciferol, is a fat-soluble nutrient essential for keeping your vitamin D status within the healthy range and supporting normal immune and bone health. This product uses Vitamin D3 as the lone active ingredient in its formulation.

This variant is supplied in the cholecalciferol form, a common and well‑characterised version of vitamin D used to support everyday vitamin D needs.

What Does Vitamin D3 Do?

Vitamin D3 helps with normal calcium absorption and plays a part in maintaining bone strength and immune system function. It helps your body respond to daily environmental and physiological demands, in line with recognised guidelines for healthy vitamin D status.

Research and regulatory bodies recognise its role in supporting these processes, with practical implications for bone and immune health over time.

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

Neuro Biologix Vitamin D3 5000 is Welzo Selected because Neuro Biologix demonstrates a clear commitment to professional-grade quality. This brand emphasises purity and a focus on formulations that are free from common allergens, GMOs and artificial additives, aligning with Welzo’s standards for clean, safe supplementation. Their stance on delivering high-strength vitamin D3 in a straightforward capsule reflects a manufacturing philosophy that prioritises potency,simplicity, and reliability, making them a strong partner for UK shoppers seeking consistent quality.

The manufacturer’s established reputation for high-purity production and allergen-conscious practices supports our decision to work with them. Their approach to ingredient selection and manufacturing aligns with Welzo’s dedication to rigorous testing and transparent formulation, which we reinforce through our quality certification process.

We evaluated Neuro Biologix with the goal of finding a brand that fits well within our clinical and consumer guidance, and their philosophy meets our criteria for trusted, science-backed sourcing. This collaboration is supported by our team of medical experts who review brand suitability and safety to ensure customers receive dependable products.