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Designs for HealthMinerals

Thyroid Synergy, 120 capsules

£41.45 for 120 capsules at Healf. It carries more than one active ingredient, so it is not ranked against single-ingredient products. Each price below counts one ingredient only.

What it really costs, per 150 µg iodine£1.04One 150 µg dose is our comparison unit for iodine. It is not a recommendation.
A day£1.04
A week£7.25
A month£31.09
A year£378.23

At one 150 µg dose a day, this pack lasts 40 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Iodine

  • Servings: 120 ÷ 2 per serving = 60
  • In the pack: 60 × 100 µg = 6 mg
  • £41.45 ÷ 6 mg × 150 µg = £1.04 per 150 µg iodine
  • A week £1.04 × 7 = £7.25 · a month × 30 = £31.09 · a year × 365 = £378.23
  • Amount per serving: stated on the label.

Copper

  • Servings: 120 ÷ 2 per serving = 60
  • In the pack: 60 × 0.5 mg = 30 mg
  • £41.45 ÷ 30 mg × 1 mg = £1.38 per 1 mg copper
  • A week £1.38 × 7 = £9.67 · a month × 30 = £41.45 · a year × 365 = £504.31
  • Amount per serving: stated on the label.

L-Tyrosine

  • Servings: 120 ÷ 2 per serving = 60
  • In the pack: 60 × 200 mg = 12 g
  • £41.45 ÷ 12 g × 500 mg = £1.73 per 500 mg
  • A week £1.73 × 7 = £12.09 · a month × 30 = £51.81 · a year × 365 = £630.39
  • Amount per serving: stated on the label.

Manganese

  • Servings: 120 ÷ 2 per serving = 60
  • In the pack: 60 × 5 mg = 300 mg
  • £41.45 ÷ 300 mg × 2 mg = 27.6p per 2 mg manganese
  • A week 27.6p × 7 = £1.93 · a month × 30 = £8.29 · a year × 365 = £100.86
  • Amount per serving: stated on the label.

Riboflavin (vitamin B2)

  • Servings: 120 ÷ 2 per serving = 60
  • In the pack: 60 × 5 mg = 300 mg
  • £41.45 ÷ 300 mg × 100 mg = £13.82 per 100 mg
  • A week £13.82 × 7 = £96.72 · a month × 30 = £414.50 · a year × 365 = £5043.08
  • Amount per serving: stated on the label.

Selenium

  • Servings: 120 ÷ 2 per serving = 60
  • In the pack: 60 × 50 µg = 3 mg
  • £41.45 ÷ 3 mg × 100 µg = £1.38 per 100 µg selenium
  • A week £1.38 × 7 = £9.67 · a month × 30 = £41.45 · a year × 365 = £504.31
  • Amount per serving: stated on the label.

Vitamin A

  • Servings: 120 ÷ 2 per serving = 60
  • In the pack: 60 × 600 µg = 36 mg
  • £41.45 ÷ 36 mg × 800 µg = 92.1p per 800 µg
  • A week 92.1p × 7 = £6.45 · a month × 30 = £27.63 · a year × 365 = £336.21
  • Amount per serving: stated on the label.

Zinc

  • Servings: 120 ÷ 2 per serving = 60
  • In the pack: 60 × 25 mg = 1.5 g
  • £41.45 ÷ 1.5 g × 15 mg = 41.5p per 15 mg zinc
  • A week 41.5p × 7 = £2.90 · a month × 30 = £12.44 · a year × 365 = £151.29
  • Amount per serving: stated on the label.

The standard dose is a comparison unit, not a recommendation. Always confirm the price on the retailer's site. How we compare everything.

How it compares: potassium iodide

All 8, ranked →
Lugol's IodineCheapest per 150 µg iodineHealf · 12.5 mg a serving · 2p a month · a pack lasts 102.7 yearsunder 1p£22.49View at Healf (opens in a new tab)
WeightWorldIodine TabletsWeightWorld · 400 µg a serving · 31p a month · a pack lasts 2.7 years1p£9.99View at WeightWorld (opens in a new tab)
Iodine +Healf · 250 µg a serving · 34p a month · a pack lasts 5.5 years1p£22.49View at Healf (opens in a new tab)
Designs for HealthThis productHealf · 100 µg a serving · £31.09 a month · a pack lasts 40 days£1.04shown above

Ranked purely by price per 150 µg iodine. 89 combination products also contain iodine.

How it compares: copper

All 10, ranked →
Chelated CopperCheapest per 1 mg copperHealf · 2.5 mg a serving · 79p a month · a pack lasts 8 months3p£6.57View at Healf (opens in a new tab)
Copper (citrate)Healf · 2 mg a serving · £2.61 a month · a pack lasts 4 months9p£10.42View at Healf (opens in a new tab)
Copper (Glycinate)Healf · 2 mg a serving · £2.75 a month · a pack lasts 4 months9p£10.98View at Healf (opens in a new tab)
Designs for HealthThis productHealf · 0.5 mg a serving · £41.45 a month · a pack lasts 30 days£1.38shown above

Ranked purely by price per 1 mg copper. 145 combination products also contain copper.

How it compares: manganese

Compare every product in this form →
Manganese 4mgCheapest per 2 mg manganeseLamberts Healthcare (Nature's Best) · 4 mg a serving · £1.04 a month · a pack lasts 7 months3p£6.95View at Lamberts Healthcare (opens in a new tab)
ManganeseHealf · 8 mg a serving · £1.39 a month · a pack lasts 8 months5p£11.14View at Healf (opens in a new tab)
Designs for HealthThis productHealf · 5 mg a serving · £8.29 a month · a pack lasts 5 months28pshown above

Ranked purely by price per 2 mg manganese. 58 combination products also contain manganese.

How it compares: riboflavin-5-phosphate

Compare every product in this form →
Riboflavin 5'-PhosphateCheapest per 100 mgHealf · 36.5 mg a serving · £31.92 a month · a pack lasts 22 days£1.06£23.30View at Healf (opens in a new tab)
Designs for HealthThis productHealf · 5 mg a serving · £414.50 a month · a pack lasts 3 days£13.82shown above

Ranked purely by price per 100 mg. 53 combination products also contain riboflavin (vitamin B2).

How it compares: selenium selenomethionine

All 10, ranked →
SeleniumCheapest per 100 µg seleniumHealf · 200 µg a serving · 93p a month · a pack lasts 12 months3p£11.19View at Healf (opens in a new tab)
SeleniumHealf · 200 µg a serving · 96p a month · a pack lasts 6 months3p£5.78View at Healf (opens in a new tab)
Liposomal SeleniumHealf · 200 µg a serving · £1.89 a month · a pack lasts 12 months6p£22.63View at Healf (opens in a new tab)
Designs for HealthThis productHealf · 50 µg a serving · £41.45 a month · a pack lasts 30 days£1.38shown above

Ranked purely by price per 100 µg selenium. 80 combination products also contain selenium.

How it compares: vitamin A retinol

All 10, ranked →
Bio-AE-Mulsion Forte®Cheapest per 800 µgHealf · 3.75 mg a serving · 26p a month · a pack lasts 9.6 years1p£30.49View at Healf (opens in a new tab)
WeightWorldVitamin A TabletsWeightWorld · 3 mg a serving · 33p a month · a pack lasts 3.8 years1p£14.99View at WeightWorld (opens in a new tab)
Designs for HealthHi-Po Emulsi-A™ LiquidHealf · 1.5 mg a serving · 51p a month · a pack lasts 5.7 years2p£34.99View at Healf (opens in a new tab)
Designs for HealthThis productHealf · 600 µg a serving · £27.63 a month · a pack lasts 45 days92pshown above

Ranked purely by price per 800 µg. 119 combination products also contain vitamin A.

How it compares: zinc bisglycinate

All 10, ranked →
WeightWorldZinc Bisglycinate TabletsCheapest per 15 mg zincWeightWorld · 50 mg a serving · 45p a month · a pack lasts 1.8 years1p£9.99View at WeightWorld (opens in a new tab)
ZipVitZinc Bisglycinate 25mgZipVit · 25 mg a serving · 49p a month · a pack lasts 1.7 years2p£9.99View at ZipVit (opens in a new tab)
VitaBrightZinc Bisglycinate Tablets with CopperVitaBright · 50 mg a serving · 58p a month · a pack lasts 1.8 years2p£12.99View at VitaBright (opens in a new tab)
Designs for HealthThis productHealf · 25 mg a serving · £12.44 a month · a pack lasts 3 months41pshown above

Ranked purely by price per 15 mg zinc. 115 combination products also contain zinc.

On the label

Iodine · Potassium iodide
100 µg per serving (stated on the label)
Copper · Copper
0.5 mg per serving (stated on the label)
Pack
120 capsules · 60 servings · 2 capsule(s) a serving
Cost per serving
69p (60 servings in the pack)
More label details
L-Tyrosine · N-acetyl L-tyrosine (NALT)
200 mg per serving (stated on the label)
Manganese · Manganese
5 mg per serving (stated on the label)
Riboflavin (vitamin B2) · Riboflavin-5-phosphate
5 mg per serving (stated on the label)
Selenium · Selenomethionine
50 µg per serving (stated on the label)
Vitamin A · Retinol (palmitate / acetate)
600 µg per serving (stated on the label)
Zinc · Bisglycinate
25 mg per serving (stated on the label)
Sold by
Healf
What the listing says
“120 caps” · “Servings Per Container: 60” · “Serving Size: 2 capsules” · “Copper (as TRAACS® Copper Bisglycinate Chelate) ; 0.5 mg”
Ingredients

N-Acetyl-L-Tyrosine, American Ginseng (Panax quinquefolius) (Root) [Standardized to contain 5% Ginsenosides], Forskolin Extract (Coleus forskohlii) (Root) [Standardized to contain 20% Forskolin], Zinc (as Zinc Bisglycinate Chelate), Riboflavin (Vitamin B2) (as Riboflavin-5-Phosphate), Manganese (as TRAACS® Manganese Bisglycinate Chelate), Vitamin A (as Retinyl Palmitate), Copper (as TRAACS® Copper Bisglycinate Chelate), Iodine (as Potassium Iodide), Selenium (as Selenomethionine), Chromium (as TRAACS® Chromium Nicotinate Glycinate Chelate), Bulking Agent (Microcrystalline Cellulose), Cellulose (Capsule), Anti-Caking Agent (Vegetable Stearate)

From the Healf listing. Check the pack itself if you have an allergy: labels mark allergens in bold.

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One 150 µg dose is our comparison unit, not a recommendation.

Price history

1 price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.

Lowest recorded
£33.241 Oct
Highest recorded
£41.452 Oct
First recorded
£33.241 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. Up at Healf: £33.24 → £41.45 (+25%)
  2. First checked at Healf: £33.24

Questions about this product

How much does Designs for Health Thyroid Synergy cost per 1 mg copper?

£1.38 per 1 mg copper, from £41.45 for 120 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

30 days at one 1 mg dose. The pack holds 30 mg in total.

How much does Designs for Health Thyroid Synergy cost per 150 µg iodine?

£1.04 per 150 µg iodine, from £41.45 for 120 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

40 days at one 150 µg dose. The pack holds 6 mg in total.

How much does Designs for Health Thyroid Synergy cost per 500 mg?

£1.73 per 500 mg, from £41.45 for 120 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

24 days at one 500 mg dose. The pack holds 12 g in total.

How much does Designs for Health Thyroid Synergy cost per 2 mg manganese?

28p per 2 mg manganese, from £41.45 for 120 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

5 months at one 2 mg dose. The pack holds 300 mg in total.

How much does Designs for Health Thyroid Synergy cost per 100 mg?

£13.82 per 100 mg, from £41.45 for 120 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

3 days at one 100 mg dose. The pack holds 300 mg in total.

How much does Designs for Health Thyroid Synergy cost per 100 µg selenium?

£1.38 per 100 µg selenium, from £41.45 for 120 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

30 days at one 100 µg dose. The pack holds 3 mg in total.

How much does Designs for Health Thyroid Synergy cost per 800 µg?

92p per 800 µg, from £41.45 for 120 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

45 days at one 800 µg dose. The pack holds 36 mg in total.

How much does Designs for Health Thyroid Synergy cost per 15 mg zinc?

41p per 15 mg zinc, from £41.45 for 120 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

3 months at one 15 mg dose. The pack holds 1.5 g in total.

About Designs for Health

All 118 Designs for Health products, priced per dose

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