Vitamin D3 4000iu 365 Tablets


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  • 12 Month supply.

  • Premium grade ingredients.
  • Smart Design : Less packaging, less waste.

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Vitamin D, also known as the sunshine vitamin, is produced from direct sunlight on our skin.

Vitamin D can also be found naturally in oily fish, red meat and egg yolks.

Public Health England recommends everybody should consider taking a Vitamin D supplement in winter.

Vitamin D supports the normal functioning of the immune system.

Vitamin D helps regulate the amount of calcium and phosphate in the body - helping to maintain healthy bones and muscles.

Vitamin D contributes to the healthy normal maintenance of teeth. 

ActiveBurst uses Vitamin D3 - a form of Vitamin D our bodies are most able to process.

Current research on Vitamin D is exploring its uses across a range of health issues.

Enhanced Value - Greater Quantity, Higher Strength, Lower Cost than other brands.
Free Next Day Shipping on all UK orders. US Shipping also available.
Formulated by experts - at the forefront of research into health and nutrition. 
4 -12 month supply (Depending on intake). Less hassle, Less shipping. Extra value.
Sustainable, Smart Design container. Reduced plastic and smaller shipping size.
An easy and effective way to incorporate nutrition into your lifestyle.
High strength formulation for optimum benefit.
Produced in the UK to GMP manufacturing standards.

Directions:  Adults, take one tablet daily with food & water. Do not exceed recommended daily dose.

As this is a high strength product it is recommended for use under guidance of your health professional, or pharmacist. Always consult your health practitioner if you are taking medication or are under medical supervision. Not recommended for children, pregnant or lactating women. You should not take supplements as a substitute for a varied balanced diet or healthy lifestyle. Store in a cool, dry & dark place, under 25 degrees, out of reach of children. Suitable for vegetarians but not vegans.

Ingredients: Bulking Agents: (Microcrystalline Cellulose, Di-Calcium Phosphate), Vitamin D Prep (Acacia Gum, Sucrose, Sunflower Oil, Corn Starch, Cholecalciferol), Anti-Caking Agents: (Magnesium Stearate, Silicon Dioxide).

Allergy Advice: Although rigorous precautions are taken to prevent any cross-contamination, this product is manufactured in a facility that handles allergy-based materials.

ActiveBurst aims to deliver the best Vitamin D supplement on the market. High dose Vitamin D capsules providing a concentrated release of 4000IU Vitamin D. Take regularly as part of a healthy diet and active lifestyle to maintain your nutritional intake. 

Manufactured in the UK to GMP code of practice, ensuring verified product quality and safety, allowing us to guarantee consistently high operational standards across our product range. 

Sunlight in a Bottle

Vitamin D is an essential nutrient that plays a crucial role in maintaining overall health and well-being. 

Vitamin D deficiency is extremely common—one study showed that over 70% of people living in the United Kingdom receive less than the recommended amount of vitamin D.

It's often called the “sunshine vitamin” because when your body is exposed to the sun, it naturally produces it, however, Its virtually impossible to get the required vitamin D levels from sunlight alone - especially in the UK.

The UK Department of Health advise everyone to consider taking a daily Vitamin D supplement in winter .

  • 4000IU

    Beautifully Effective
  • 0

    Hidden Nasties

  • 100%

    Organic Ingredients

Is Vitamin D Right for you?

Public Health Recommended

The UK Department of Health advises everyone take a Vitamin D Supplement over winter. 

Winter Colds?

Vitamin D Plays an important role in boosting your immune system. Helping you avoid those winter bugs. 

Live an active life?

Vitamin D is essential for maintaining strong and healthy muscles and bones, which is why important for anyone with an active lifestyle.

What Gives ActiveBurst the Edge

Vitamin D comes as either Vitamin D2 or Vitamin D3. 

Studies show vitamin D3 is significantly more effective because it increases your Vitamin D levels for longer.

Many other supplement brands use Vitamin D2. 

ActiveBurst Vitamin D uses Vitamin D3.

ActiveBurst Vitamin D

  • 4000iu of 100% Vitamin D.

  • 60 day money back guarantee.

  • Vitamin D3 - Its most effective form. 
  • Positive reviews from real customers.

Other Vitamin D Brands

  • Ineffective, low doses.

  • Weaker, Less Bioavailable D2

  • Chunky coated tablets.

  • Mixed customer feedback.


We're so confident in our products that every ActiveBurst purchase comes with a 60 day guarantee. Try our products for 60 days - if you don't like them, return them for a full refund - no questions asked.
  • 24/7 Friendly Support
    Our Support Team are always ready for you 7 days a week. 

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Why Our Customers Take It

Customer Reviews

Based on 18 reviews
Oscar Simpson
Fantastic, Faultless Vitamin D- Give them a go.

As I take Vit D daily these are great value for money. Also I bought 3 packs of them for and received a discount. Less than I would have paid at my chemist I'm more than happy with them and will re-order again when I need to. Fantastic and easy to swallow no no after taste. I Cant fault this supplement at all. A fantastic supply.

Jessica Ward
Love it

For those seeking a potent vitamin D supplement to boost their immune system and promote healthy bones, teeth, and muscles, Ultra Vitamin D by ActiveBurst is worth considering. With 4000 IU of vitamin D3, the most readily absorbed form, this product ensures optimal strength. Conveniently available in tablet form, it can be taken once daily with your main meal for ease of use.

Ken Reid
Small tablet and easy to swallow. Great strength

Speedy delivery, excellent packaging, I don't get many opportunities to bask in the sun due to my sensitive skin. Vitamin D is a great for those with sensitive skin.

Niall Hill
Excellent value

Excellent value. Excellent quality and really great service. Speedy delivery. Highly recommend. Year long supply. Thank you.

Katherine Clark

I've given these tablets 5 stars because there isn't a fault with them. If you know the benefits of vitamin D, these are the tablets for you, they are high strength, very small and easy to swallow.


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