Let the sun in, on subscription.

Vitamin D is unique among vitamins in that we usually get the majority of it for free, from the sun. That’s great if it’s there, but not everyone is so lucky.
You can buy your Desunin vitamin D supplements from Treated and have them delivered when you need them. If your product needs a prescription, simply talk to us about your health and one of our clinicians will help find something that works for you.
Desunin is a treatment or supplement, which can provide vitamin D to you if you want to prevent your levels from dropping, or if you have a condition where severely low levels of vitamin D have given you bone problems.
Vitamin D is one of the essential vitamins and minerals that our bodies need to function properly. It’s vital for healthy bones, teeth and muscles. Low levels are associated with everything from bone deformities to depression.
Desunin contains colecalciferol (vitamin D3) which works to increase the amount of calcium and phosphate in your body to keep it working properly.
Using supplements to keep vitamin D levels from dropping during those dark months can help you to maintain your health. It can also treat conditions where severe vitamin D deficiency has set in, such as certain bone conditions.
Desunin is available at Treated in two dosages: 800 IU and 4,000 IU. Desunin 800 IU is used for prevention and 4,000 IU as a treatment for severely low vitamin D deficiency. All dosages are only available on prescription and their use will need to be monitored by your prescribing clinician.
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
Have something specific you want to know? Search our info below, or ask our experts a question if you can’t find what you’re looking for.
Vitamin d deficiency- an ignored epidemic. International journal of health sciences, [online] 4(1), pp.V–VI.
Maintenance Dose of Vitamin D: How Much Is Enough? Journal of Bone Metabolism, [online] 25(3), p.161.
Correction of Low vitamin D Improves Fatigue: Effect of Correction of Low vitamin D in Fatigue Study (EViDiF Study). North American Journal of Medical Science. U.S.A. PMC.
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Meet RuaraidhDelivery, consultation, treatment. It’s all included in the price.
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30 Tablet(s) | £26.95 |
90 Tablet(s) | £37.95 Save £42.90 |
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30 Capsules | £25.95 |
90 Capsules | £30.95 Save £46.90 |
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30 Tablets | £26.95 |
90 Tablets | £33.95 Save £46.90 |
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30 Capsules | £25.95 |
90 Capsules | £32.95 Save £44.90 |
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30 Tablets | £25.95 |
90 Tablets | £34.95 Save £42.90 |
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30 Tablets | £25.95 |
90 Tablets | £29.95 Save £47.90 |
Quantity | Starting from |
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30 Capsules | £25.95 |
90 Capsules | £29.95 Save £47.90 |
Quantity | Starting from |
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30 Capsules | £27.95 |
90 Capsules | £38.95 Save £44.90 |
Quantity | Starting from |
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28 Capsule(s) | £25.95 |
56 Capsule(s) | £32.95 Save £18.95 |
84 Capsule(s) | £38.95 Save £38.90 |
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100 Capsule(s) | £27.95 |
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30 Capsule(s) | £29.95 |
90 Capsule(s) | £43.95 Save £45.90 |
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30 Capsule(s) | £27.95 |
90 Capsule(s) | £38.95 Save £44.90 |
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30 Capsule(s) | £32.95 |
90 Capsule(s) | £52.95 Save £45.90 |
Quantity | Starting from |
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28 Tablet(s) | £27.95 |
84 Tablet(s) | £36.95 Save £46.90 |
Quantity | Starting from |
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30 Capsule(s) | £26.95 |
90 Capsule(s) | £35.95 Save £44.90 |
Quantity | Starting from |
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28 Capsules | £28.95 |
84 Capsules | £44.95 Save £41.90 |
Quantity | Starting from |
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28 Tablets | £26.95 |
84 Tablets | £35.95 Save £44.90 |
Quantity | Starting from |
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28 Tablets | £27.95 |
84 Tablets | £36.95 Save £46.90 |
Quantity | Starting from |
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28 Capsules | £27.95 |
84 Capsules | £36.95 Save £46.90 |
Quantity | Starting from |
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28 Capsules | £27.95 |
84 Capsules | £36.95 Save £46.90 |
Quantity | Starting from |
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30 Capsules | £26.95 |
90 Capsules | £35.95 Save £44.90 |
Quantity | Starting from |
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30 Capsules | £26.95 |
90 Capsules | £35.95 Save £44.90 |
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Vitamin D: Here are some other options.
The sunshine vitamin in a capsule. Provides you with the recommended daily amount (RDA).
Halal and Kosher friendly, as well as free from gluten and lactose. A range of doses on prescription.
Available as an oral solution, capsule or liquid in a range of doses.
Gluten-free, halal and vegetarian friendly capsule available as a maintenance or treatment dose.
Gluten and lactose free, halal and vegetarian friendly. Available in 7 different doses.
Tablet that's available as a supplement or treatment dose. Vegetarian friendly.
Prescription-only soft gel capsule available in 3 doses. Halal and kosher friendly.
The all-rounder. Halal, kosher and veggie-friendly, gluten and lactose free - in a range of doses.
Vitamin D capsule that's suitable for a range of dietary requirements. Supplement and treatment doses available.
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Disclaimer: The information provided on this page is not a substitute for professional medical advice, diagnosis, or treatment. If you have any questions or concerns about your health, please talk to a doctor.
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