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  • Description
  • Key Features

Featured Review

“Great for maintaining my vit D level
I’ve been taking 5000iu of Pureclinica vitamin D for a couple of years now to help.... Can gladly recommend 👍👍👍”

- Gemma E

Description

Double Strength Vitamin D3 offers a powerful dose of this essential vitamin in every tablet, providing 5000 IU.

Vitamin D, often referred to as the sunshine vitamin, is crucial for maintaining overall health. Your body naturally produces Vitamin D when your skin is exposed to sunlight. However, many factors can limit your sun exposure, making it challenging to produce enough Vitamin D, especially during the winter months or if you spend most of your time indoors.

Vitamin D plays a vital role in supporting the normal function of the immune system, and is also essential for the maintenance of normal bones and muscle function. Additionally, Vitamin D helps regulate the levels of calcium and phosphate in your body, which are crucial for healthy bones and teeth.

Given the difficulty in obtaining sufficient Vitamin D from sunlight alone, especially from October to March, the NHS recommends that everyone in the UK take a Vitamin D supplement during these months. Double Strength Vitamin D3 ensures you receive an adequate daily dose to keep your levels topped up and your body functioning optimally.

Choose Double Strength Vitamin D3 to maintain your health and wellbeing all year round. Suitable for vegetarians, this supplement provides a convenient way to ensure you meet your daily Vitamin D needs.

Key Features:

  • 2x more vitamin D3 than most similar supplements (5000iu compared to 2500iu.
  • Supports the normal function of the immune system
  • Contributes towards the maintenance of muscle and bone function
  • Rigorous testing and transparency ensures you know exactly what you are putting in your body.
  • Outstanding value: 180 tablets per bottle, providing up to 6 months supply.
Bone, Heart, Cardiovascular

Double Strength Vitamin D3

2x Dose 5000iu x 180 tablets

50+ purchased this past month

A double dose of the sunshine vitamin - Vitamin D3, providing 5000iu per tablet.

£18.99
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Expected delivery in 1-3 business days

Frequently purchased with these:

Double Strength Chewable Vitamin C 1000 mg x 120 tablets
Immune Support, Collagen Synthesis

Double Strength Chewable Vitamin C

1 bottle - £18.99
2X Dose
1000mg x 120 Chewable Tablets

£18.99

Double Strength Vitamin D3 offers a powerful dose of this essential vitamin in every tablet, providing 5000 IU.

Vitamin D, often referred to as the sunshine vitamin, is crucial for maintaining overall health. Your body naturally produces Vitamin D when your skin is exposed to sunlight. However, many factors can limit your sun exposure, making it challenging to produce enough Vitamin D, especially during the winter months or if you spend most of your time indoors.

Vitamin D plays a vital role in supporting the normal function of the immune system, and is also essential for the maintenance of normal bones and muscle function. Additionally, Vitamin D helps regulate the levels of calcium and phosphate in your body, which are crucial for healthy bones and teeth.

Given the difficulty in obtaining sufficient Vitamin D from sunlight alone, especially from October to March, the NHS recommends that everyone in the UK take a Vitamin D supplement during these months. Double Strength Vitamin D3 ensures you receive an adequate daily dose to keep your levels topped up and your body functioning optimally.

Choose Double Strength Vitamin D3 to maintain your health and wellbeing all year round. Suitable for vegetarians, this supplement provides a convenient way to ensure you meet your daily Vitamin D needs.

Key Features:

  • 2x more vitamin D3 than most similar supplements (5000iu compared to 2500iu.
  • Supports the normal function of the immune system
  • Contributes towards the maintenance of muscle and bone function
  • Rigorous testing and transparency ensures you know exactly what you are putting in your body.
  • Outstanding value: 180 tablets per bottle, providing up to 6 months supply.
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Supplement Facts
Key Ingredients
Quality Manufacturing And Testing
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Nutritional Information +
Ingredients Per Serving % NRV

Vitamin D3

5000iu

200
Other Ingredients +

Bulking agents (calcium phosphate, microcrystalline cellulose), nti-caking agents (magnesium stearate, silicon dioxide)

Suggested Use +

Take one tablet daily, preferably with a meal. Do not exceed stated dose.

Warnings +

180 tablets per bottle

Each tablet contains:

5000iu Vitamin D3

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Store in a cool dry place, away from direct sunlight.

Warning:

Keep away from children.

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Our Double Strength Vitamin D3 DO NOT Contain:

Yeast, wheat, milk, eggs, gluten, soy, shellfish, or dairy.

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Key ingredients

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Quality Manufacturing And Testing

Since 2005, we’ve done more than produce supplements—we create products that truly deliver results.

That starts with traceable, select ingredients, sourced for their strength and efficacy. At our UK, US, and Netherland's based facilities, certified to CGMP, ISO, and BRC standards, every step is purposefully engineered for precision and control. Advanced extraction and purification methods radically improve potency while removing impurities, without introducing toxic chemicals.

We further excel through rigorous unparalleled testing. Ingredients, production stages, and finished products undergo constant checks, with third-party labs verifying finished products.

No shortcuts, no empty hype—just supplements built on science, care, and a commitment to doing things right. Upgrade to stronger supplements, get better results.

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TRY RISK FREE!

If for any reason you are not satisfied with any order, we will give you a 100% hassle free refund.

4 Core Benefits Of Our

Double Strength Vitamin D3

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A Double Dose

Each tablet provides a double dose compared to regular Vitamin D3 supplements.

Absorbs Like a Sponge

Made with a granulated binding formula to ensure more of the essential nutrients are digested and absorbed.

Exceptional Value For Money

With a high strength dose in each tablet, every bottle of 180 tablets lasts up to 6 months.

Maximum Potency

Packing 5000iu of Vitamin D3 into every tablet ensures you get the dose you need when you're otherwise lacking.

Proudly made in the USA and the UK to the strictest of standards

A double dose of Vitamin D3

We began in 2005 with a mission to create health supplements that are potent and truly effective, making a noticeable difference in the lives of those who use them. Our Double Strength Vitamin D3 continues this proud tradition.

Each Double Strength Vitamin D3 tablet contains 5000 IU of Vitamin D3, providing twice the dose of regular vitamin D3 supplements, which usually offer only 2000-2500 IU per tablet.

This ensures that you receive the necessary dosage with just one tablet, making it a convenient and cost-effective choice.

As advertised
Finding other Vitamin D3 supplements that claim to provide 5000 IU is not so difficult, but finding on with that amount in a single tablet is much more challenging.

A quick glance at the back of the label often reveals that the stated strength is per serving, not per tablet, with the serving size necessitating up to 3 tablets or capsules to achieve the claimed dose.

Our Double Strength Vitamin D3 delivers the full 5000 IU in just one tablet, making it a more convenient and economical choice.

A better vitamin D3

We developed Double Strength Vitamin D3 with both strength and purity in mind.

In producing our Vitamin D3, we partnered with our manufacturers to implement a purification system using advanced and sustainable techniques that results in an very high quality Vitamin D3.

High purity and sustainable
A key method in our process is Supercritical Fluid Extraction (SFE), which utilizes recycled carbon dioxide (CO2) as a solvent. This environmentally friendly technique operates under high pressure and moderate temperature, allowing CO2 to act as both a gas and a liquid. In this state, CO2 effectively dissolves impurities and isolates the pure Vitamin D3. Once the extraction is complete, the CO2 is easily removed and recycled, resulting in minimal environmental impact and a highly pure product.

Get more from your vitamin D3
Because the SFE process operates at relatively low temperatures, the integrity and potency of our Vitamin D3 in preserved, meaning it remains stable and active for far longer, and is more readily absorbed by your body.

Value for money
Our mission is to make wellness accessible to everyone. That's why we offer Double Strength Vitamin D3 at an affordable price.

With 180 tablets per bottle, each bottle provides a six-month supply, delivering exceptional value.

Customer Reviews

Based on 6 reviews
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17%
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B
Brian Milligan (London, GB)
Vit d3

Very good will buy again when due

J
J. (London, GB)
Quick delivery!

Bought for someone else, but I can comment on the quick and no hassle delivery.

L
Linda Stone (Croydon, GB)
Excellent ☀️

Delivered quickly -good product

G
Gemma Every (Bristol, GB)
Great for maintaining my vit D level

I’ve been taking 5000iu of Pureclinica vitamin D for a couple of years now to help manage my MS. So far so good! Can gladly recommend 👍👍👍

C
Cheryl Williams (Warrington, GB)
Double strength vitamin D

Prompt delivery and good value as always. I haven’t been using the product for long enough to comment on its effectiveness, but based on my experience of other Pureclinica products I expect good results.

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Frequently Asked Questions

Is it safe to take 5000iu of Vitamin D3

This is high strength supplement, intended only for those who require such a large dose.

It is important to consult with a medical professional before taking such a strong dose.

Can I get enough Vitamin D3 from sunlight?

Yes, your skin can produce Vitamin D3 when exposed to sunlight. However, factors such as geographic location, skin pigmentation, age, and sunscreen use can affect how much Vitamin D3 your body produces, making supplementation beneficial for many people.

Can I take Vitamin D3 with other medications?

Vitamin D3 can interact with certain medications, such as steroids and weight loss drugs. Always consult your healthcare provider before starting any new supplement, especially if you are on medication.

FOR EVERY BOTTLE YOU BUY A TREE IS PLANTED ON YOUR BEHALF

A tiny sapling goes a long way. Through our partnership with Eden Reforestation Projects, we are helping to plant trees on a massive scale.

Every bottle you purchase helps to protect vital eco-systems, help mitigate climate change, and create jobs that help provide education, health care, and food for rural communities in Mozambique, Nepal, Madagascar, and Ethiopia.

Our aim is to plant 10 million trees by 2030.

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