Selenium & Iodine Thyroid Support
Selenium (as selenomethionine) and iodine for thyroid hormone production, immune function, and antioxidant defence.
What does optimal health cost per day?
Less than a coffee top-up. Optimal nutrition for 24p/day — the most cost-effective investment in your health.
Free Vitamin C 1000mg with orders over £40
While stocks last · auto-added at checkout
Supply size
Most customers reorder this monthly. Each pack lasts ~30 days.
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Your daily health investment
£0.48
per day
£3.36
per week
£14.49
per month
Less than a daily coffee — for daily nutritional support from Selenium &.
Auto-delivered. No minimum term. Cancel any time.
Price locked forever — we never raise your subscription price. Cancel any time, no fees.
Bundle and save up to 20%
Add 2+ products to your stack — discount applied automatically at checkout.
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Only £2.99 — credited toward your first full order
Group buy — save up to 30%
Limited spotsPool orders with other Selenium buyers. The more people join, the more everyone saves. Next group buy runs when we hit 50 registrations.
📦 What to expect when it arrives
Premium box
Double-sealed. No cheap poly bags — every Medibro order ships in a quality box.
Amber glass
UV-protective amber glass preserves potency. Satisfying click-lid seal.
Little extras
Every first order includes a usage guide and a surprise freebie — see what you get.
Start today
Take your first dose the day it arrives — don't wait for a 'perfect moment'.
Your 30-day journey starts today
Future you will look back on this moment.
Based on typical customer reports. Individual results vary. Backed by our 30-day guarantee.
Premium packaging, inside and out
Amber glass jar
Blocks UV degradation, no plastic leaching
100% recyclable
Jar, cap, and box are fully kerbside recyclable
No artificial fillers
No magnesium stearate, silicon dioxide, or titanium dioxide
- Free UK delivery over £35
- 14-day hassle-free returns
- Secure checkout, audit-logged
- Manually compliance-reviewed
Order dispatched, tracking info sent. Most customers take their first dose the day it arrives.
Research shows it takes ~14 days to anchor a new habit. By now, most customers have found their ideal time of day.
At 8 weeks, customers report the strongest improvements. Consistency is everything with nutritional supplements.
Over 90% of Medibro subscribers are still on the same product at 3 months — the clearest signal a supplement is working.
The thyroid gland requires both iodine (to synthesise thyroid hormones T3 and T4) and selenium (for the enzymes that activate and regulate those hormones). UK soils are selenium-depleted, and iodine deficiency is re-emerging due to falling dairy consumption.
Selenomethionine is the most bioavailable organic selenium form — not sodium selenite.
Benefits
- ✓Thyroid function
- ✓Immune defence
- ✓Antioxidant
- ✓Fertility
- ✓Metabolism
Dosing Guide
How to take Selenium & Iodine Thyroid Support
Take 1 capsule daily with food.
Always read the label. Consult a healthcare professional if you have any medical conditions or take prescription medication.
Quality & transparency
How we compare
Medibro vs. typical high-street / marketplace alternatives
| Feature | Medibro | Others |
|---|---|---|
| Ingredient quality | Premium grade | Generic grade |
| Third-party tested | ||
| No unnecessary fillers | ||
| UK manufactured | ||
| 30-day guarantee | ||
| Free UK shipping from £35 |
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⏰ How to take for best results
Best time
With food, once daily
Take with
Water or a meal
Avoid with
No specific interactions — check with your GP if on medication
Consistency is key. Take at the same time each day to build habit and maximise benefit.
Frequently asked questions
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Answer 4 quick questions and get a personalised stack built around your goals, health history, and lifestyle.
Medibro Quality Score™
Independent assessmentPurity
92
Overall
out of 100
Potency
Value
How we compare
Medibro | Budget | Pharmacy | |
|---|---|---|---|
3rd-party COA testing | |||
Premium forms (glycinate, KSM-66, TG omega) | |||
Full ingredient transparency | |||
UK pharmacist reviewed | |||
No proprietary blends | |||
30-day money-back guarantee | |||
Eco-friendly packaging |
Comparison reflects general market observations. Specific brands may vary.
What outcomes matter most to you?
Founded by a UK pharmacist
“After 12 years dispensing prescriptions, I was frustrated by the gap between expensive supplements and what the evidence actually supports. Medibro was built to source properly — clinical doses, verified purity, fair prices.”
— MPharm, GPhC registered · Medibro founder
Every formula is reviewed by our in-house pharmacy team before launch.
Complete your stack
✨What customers say
From 20 reviews★ 4.5Customers appreciate the effective combination of selenium and iodine for improving thyroid function, with many reporting increased energy levels and stabilised TSH results.
Some users mention that iodine can be hard to obtain from diet, and a few express concerns about the price relative to other supplements.
This product is ideal for women at risk of thyroid issues, individuals with subclinical hypothyroidism, and those living in areas with low dietary iodine.
Customer reviews
- ★★★★☆Grace S.04/05/2026Good for women's thyroid health
Women are significantly more at risk of thyroid issues. This combination is proactive and evidence-based.
- ★★★★☆Freya Z.28/04/2026Worth it for thyroid health
I live inland away from seafood and iodine is genuinely difficult to get from diet. This combination is sensible.
- ★★★★★Jack N.20/04/2026Good thyroid stack
Selenium is essential for T4 to T3 conversion and iodine is needed for thyroid hormone synthesis. Both in one product is convenient.
- ★★★★★Ella U.18/04/2026Thyroid function improved
Subclinical hypothyroid and my endocrinologist suggested selenium and iodine supplementation. Fatigue has improved and TSH is more stable.
- ★★★★★Ella U.15/04/2026Thyroid function improved
Subclinical hypothyroid and my endocrinologist suggested selenium and iodine supplementation. Fatigue has improved and TSH is more stable.
- ★★★★☆Freya Z.04/04/2026Worth it for thyroid health
I live inland away from seafood and iodine is genuinely difficult to get from diet. This combination is sensible.
- ★★★★★Charlotte F.01/04/2026Thyroid function improved
Subclinical hypothyroid and my endocrinologist suggested selenium and iodine supplementation. Fatigue has improved and TSH is more stable.
- ★★★★★Christine B.Verified buyer31/03/2026GP surprised by improvement
Thyroid antibody count was high on annual test. Added this selenium + iodine stack. Next test showed significant reduction. GP asked which supplement I was taking and now recommends it to other Hashimoto's patients.
- ★★★★★Oscar Y.28/03/2026Good thyroid stack
Selenium is essential for T4 to T3 conversion and iodine is needed for thyroid hormone synthesis. Both in one product is convenient.
- ★★★★☆Grace S.26/03/2026Worth it for thyroid health
I live inland away from seafood and iodine is genuinely difficult to get from diet. This combination is sensible.
- ★★★★☆William L.26/03/2026Good for women's thyroid health
Women are significantly more at risk of thyroid issues. This combination is proactive and evidence-based.
- ★★★★☆Jenny P.Verified buyer11/03/2026TSH levels improving
Borderline hypothyroid on blood tests. GP agreed to try thyroid support supplementation before medication. After 4 months of selenium + iodine, TSH is trending toward normal. Will reassess at 6-month blood test.
- ★★★★★Oscar Y.07/03/2026Thyroid function improved
Subclinical hypothyroid and my endocrinologist suggested selenium and iodine supplementation. Fatigue has improved and TSH is more stable.
- ★★★★★Fiona K.Verified buyer28/02/2026Thyroid antibodies reduced
Hashimoto's thyroiditis confirmed. Endocrinologist specifically recommended selenium supplementation — the research on selenium reducing TPO antibodies in Hashimoto's is strong. After 6 months on this, antibody levels have reduced. Excellent formulation with both selenium and iodine.
- ★★★★☆Joshua E.12/02/2026Good for women's thyroid health
Women are significantly more at risk of thyroid issues. This combination is proactive and evidence-based.
- ★★★★☆Patricia W.06/02/2026Good quality thyroid support
The selenium selenomethionine form is the most bioavailable and is the form used in the Hashimoto's studies. Combined with potassium iodide. This is the correctly formulated thyroid support stack.
- ★★★★★James T.05/02/2026Good thyroid stack
Selenium is essential for T4 to T3 conversion and iodine is needed for thyroid hormone synthesis. Both in one product is convenient.
- ★★★★★Rebecca H.Verified buyer22/01/2026Energy returned, hair stopped falling
Hypothyroidism (subclinical) was causing fatigue and hair loss. Endocrinologist suggested selenium + iodine support alongside monitoring. After 3 months: energy returning, hair shedding reduced significantly. Proper doses, proper forms.
- ★★★★★Harry G.21/01/2026Good thyroid stack
Selenium is essential for T4 to T3 conversion and iodine is needed for thyroid hormone synthesis. Both in one product is convenient.
- ★★★★☆Sarah M.13/01/2026Worth it for thyroid health
I live inland away from seafood and iodine is genuinely difficult to get from diet. This combination is sensible.
Questions & answers
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