Vitamin D as an oral solution, capsule or liquid.

Invita D3 is a simple and highly effective way to prevent your vitamin D levels from dropping, or treating severely low levels that can cause health problems.
Prescription dosages of Invita D3 are available at Treated. You just need to talk to us about your health and one of our registered clinicians can offer the most suitable treatments tailored for you. On top of this, our subscription service means you can get your supplement delivered regularly.
Invita D3 is a vitamin D supplement or treatment that is available as a capsule, oral solution or drop. It can be taken to help maintain good levels of vitamin D in your body, to help keep you healthy through the dark winter months.
Vitamin D is one of the body’s essential vitamins and minerals. It helps keep muscles, teeth and bones healthy.
When the sun isn’t shining it’s sometimes more difficult to get enough vitamin D in our systems. What’s more, the darker your skin, the harder this becomes. Vitamin D deficiency has actually been called an ignored epidemic by some health officials.
Invita D3 is essentially vitamin D. Its active ingredient, colecalciferol, is processed in the body as vitamin D, which helps you to fight off fatigue and keeps up your calcium levels. If you’re not getting enough sunlight, whether because it’s winter or you’re just not the outdoors type, then the lower doses of vitamin D will act as a preventative measure against your levels dropping too low. If you already have severely low levels of vitamin D, then it can be used as a treatment, although this will require higher doses.
Invita comes in many dosages, some for use as a supplement and some for use as a treatment. Invita D3 800 IU and 400 IU dosages are supplements and should be taken once a day, every day. The stronger doses are prescription medications. Which one you’ll be prescribed will depend on how severe your lack of vitamin D is and what it’s being prescribed to treat.
Invita D3 20,000 IU dosages are a common treatment, but strengths go as high as 50,000 IU.
There are also 5,600 IU capsules for less severe vitamin D deficiency.
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. U.S.A. PMC. [Accessed May 15th 2021]
Maintenance Dose of Vitamin D: How Much Is Enough? Journal of Bone Metabolism, [online] 25(3), p.161.
Registered with GMC (No. 4624794)
Meet DanielRegistered with GPhC (No. 2202465)
Meet SanjedaRegistered with GPhC (No. 2070724)
Meet CraigRegistered with GPhC (No. 2070338)
Meet RuaraidhDelivery, consultation, treatment. It’s all included in the price.
Quantity | Starting from |
---|---|
28 Capsule(s) | £25.95 |
56 Capsule(s) | £32.95 Save £18.95 |
84 Capsule(s) | £38.95 Save £38.90 |
Quantity | Starting from |
---|---|
30 Capsules | £25.95 |
90 Capsules | £30.95 Save £46.90 |
Quantity | Starting from |
---|---|
30 Tablets | £26.95 |
90 Tablets | £33.95 Save £46.90 |
Quantity | Starting from |
---|---|
30 Capsules | £25.95 |
90 Capsules | £32.95 Save £44.90 |
Quantity | Starting from |
---|---|
30 Tablets | £25.95 |
90 Tablets | £34.95 Save £42.90 |
Quantity | Starting from |
---|---|
30 Tablets | £25.95 |
90 Tablets | £29.95 Save £47.90 |
Quantity | Starting from |
---|---|
30 Capsules | £25.95 |
90 Capsules | £29.95 Save £47.90 |
Quantity | Starting from |
---|---|
30 Tablet(s) | £26.95 |
90 Tablet(s) | £37.95 Save £42.90 |
Quantity | Starting from |
---|---|
30 Capsules | £27.95 |
90 Capsules | £38.95 Save £44.90 |
Quantity | Starting from |
---|---|
100 Capsule(s) | £27.95 |
Quantity | Starting from |
---|---|
30 Capsule(s) | £29.95 |
90 Capsule(s) | £43.95 Save £45.90 |
Quantity | Starting from |
---|---|
30 Capsule(s) | £27.95 |
90 Capsule(s) | £38.95 Save £44.90 |
Quantity | Starting from |
---|---|
30 Capsule(s) | £32.95 |
90 Capsule(s) | £52.95 Save £45.90 |
Quantity | Starting from |
---|---|
28 Tablet(s) | £27.95 |
84 Tablet(s) | £36.95 Save £46.90 |
Quantity | Starting from |
---|---|
30 Capsule(s) | £26.95 |
90 Capsule(s) | £35.95 Save £44.90 |
Quantity | Starting from |
---|---|
28 Capsules | £28.95 |
84 Capsules | £44.95 Save £41.90 |
Quantity | Starting from |
---|---|
28 Tablets | £26.95 |
84 Tablets | £35.95 Save £44.90 |
Quantity | Starting from |
---|---|
28 Tablets | £27.95 |
84 Tablets | £36.95 Save £46.90 |
Quantity | Starting from |
---|---|
28 Capsules | £27.95 |
84 Capsules | £36.95 Save £46.90 |
Quantity | Starting from |
---|---|
28 Capsules | £27.95 |
84 Capsules | £36.95 Save £46.90 |
Quantity | Starting from |
---|---|
30 Capsules | £26.95 |
90 Capsules | £35.95 Save £44.90 |
Quantity | Starting from |
---|---|
30 Capsules | £26.95 |
90 Capsules | £35.95 Save £44.90 |
We know health, but you know you.
Our experts tell you what’s safe, but you decide what’s best.
Answer a few questions and tell us about yourself. Get tailored advice from our clinicians so you can choose better.
Choose your treatment and how often you have it delivered.
We know things change. It’s the nature of life. We’ll check in regularly to make sure your treatment is still right for you.
Pause. Change. Skip. Start again. Any time you like.
5
Always on time and delivered with care
Very happy.thank you, fast posting, everything straight forward, well priced.will be using again.thank you.
Simple online assessment and swift delivery
Excellent service provided particularly as this is mostly out of stock in pharmacies most of the time.
Fast delivery
Our average rating based on 16211 reviews.
Vitamin D: Here are some other options.
The sunshine vitamin in a capsule. Provides you with the recommended daily amount (RDA).
Prescription only medication that's available as either a supplement or a treatment.
Halal and Kosher friendly, as well as free from gluten and lactose. A range of doses on prescription.
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.
We're making healthcare more about you. Sign up to our newsletter for personalised health articles that make a difference.
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.
We couldn't find what you're looking for.
Here's everything we treat. Or, if you're looking for something we don't have yet, you can suggest something.
If there’s a particular treatment or condition you’re looking for, tell us and we’ll look into it for you.
If you made a mistake on the gender selection, you can amend this by pressing 'Cancel' below and changing your gender. If you entered the correct gender but made a mistake on the treatment category selection, you can choose a different category by pressing 'Choose other treatment' below.
You have recently requested a change to your treatment plan which is under review.
We'll let you know once our clinician has reviewed your request.
Our prescriber has already made treatment suggestions for you
You can view and select an option from your account.
You already have treatment for under review.
You have a consultation being reviewed. Our prescriber will contact you soon.
You already have a treatment plan for on pause. You can restart or make changes to this from your account.
Submit your question here, or tell us if you’ve found an issue on our site.
We’ll get back to you very soon. We aim to respond to all queries in one working day.
You’re signed up to our newsletter. Keep an eye on your inbox for our latest update.
By clicking 'Subscribe now' you're agreeing to our Privacy Policy.
Your order is on hold because we need to verify your identity.
You have an order on hold because we couldn’t take your payment. To continue, please add a new payment method.