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Biotics ResearchMinerals

GTA-Forte®, 90 capsules

£32.92 for 90 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 15 mg zinc55pOne 15 mg dose is our comparison unit for zinc. It is not a recommendation.
A day55p
A week£3.84
A month£16.46
A year£200.26

At one 15 mg dose a day, this pack lasts 2 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Zinc

  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 10 mg = 900 mg
  • £32.92 ÷ 900 mg × 15 mg = 54.9p per 15 mg zinc
  • A week 54.9p × 7 = £3.84 · a month × 30 = £16.46 · a year × 365 = £200.26
  • Amount per serving: stated on the label.

Copper

  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 1 mg = 90 mg
  • £32.92 ÷ 90 mg × 1 mg = £1.46 per 1 mg copper
  • A week £1.46 × 7 = £10.24 · a month × 30 = £43.89 · a year × 365 = £534.04
  • Amount per serving: stated on the label.

Selenium

  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 26 µg = 2.34 mg
  • £32.92 ÷ 2.34 mg × 100 µg = £1.41 per 100 µg selenium
  • A week £1.41 × 7 = £9.85 · a month × 30 = £42.21 · a year × 365 = £513.50
  • 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: zinc gluconate

All 7, ranked →
Zinc 50mgCheapest per 15 mg zincHealf · 50 mg a serving · 38p a month · a pack lasts 2.3 years1p£10.45View at Healf (opens in a new tab)
Zinc 50mgHealf · 50 mg a serving · 43p a month · a pack lasts 11 months1p£4.79View at Healf (opens in a new tab)
Zinc (25mg) 120 TabletsHolland & Barrett · 25 mg a serving · £1.45 a month · a pack lasts 7 months5p£9.69View at Holland & Barrett (opens in a new tab)
This productHealf · 10 mg a serving · £16.46 a month · a pack lasts 2 months55pshown above

Ranked purely by price per 15 mg zinc. 33 combination products also contain zinc.

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)
This productHealf · 1 mg a serving · £43.89 a month · a pack lasts 23 days£1.46shown above

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

How it compares: other forms of selenium

All 10, ranked →
WeightWorldSelenium TabletsCheapest per 100 µg seleniumWeightWorld · 200 µg a serving · 62p a month · a pack lasts 2 years2p£14.99View at WeightWorld (opens in a new tab)
Selenium 200ug 240 TabletsHolland & Barrett · 200 µg a serving · £1.12 a month · a pack lasts 1.3 years4p£17.99View at Holland & Barrett (opens in a new tab)
Super Selenium ComplexHealf · 200 µg a serving · £1.19 a month · a pack lasts 7 months4p£7.96View at Healf (opens in a new tab)
This productHealf · 26 µg a serving · £42.21 a month · a pack lasts 23 days£1.41shown above

Ranked purely by price per 100 µg selenium. 120 combination products also contain selenium.

On the label

Zinc · Gluconate
10 mg per serving (stated on the label)
Copper · Copper
1 mg per serving (stated on the label)
Pack
90 capsules · 90 servings · 1 capsule(s) a serving
Cost per serving
37p (90 servings in the pack)
More label details
Selenium · Other forms
26 µg per serving (stated on the label)
Sold by
Healf
What the listing says
“90caps” · “Servings Per Container: 90” · “Serving Size: 1 Capsule” · “Copper (As Copper Gluconate ; 0.25 mg ; 25%”
Ingredients

Porcine Glandular Concentrate, Zinc (As Zinc Gluconate), Copper (As Copper Gluconate, Selenium (From Vegetable Culture), Superoxide Dismutase (From Vegetable Culture), Catalase (From Vegetable Culture), Rubidium (From Vegetable Culture), Capsule Shell (Gelatin And Water), Organik-15™ Vegetable Culture

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

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One 15 mg dose is our comparison unit, not a recommendation.

Price history

No price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.

Price at every check
£32.92Healf
First recorded
£32.921 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. First checked at Healf: £32.92

Questions about this product

How much does Biotics Research GTA-Forte® cost per 1 mg copper?

£1.46 per 1 mg copper, from £32.92 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

23 days at one 1 mg dose. The pack holds 90 mg in total.

How much does Biotics Research GTA-Forte® cost per 100 µg selenium?

£1.41 per 100 µg selenium, from £32.92 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

23 days at one 100 µg dose. The pack holds 2.34 mg in total.

How much does Biotics Research GTA-Forte® cost per 15 mg zinc?

55p per 15 mg zinc, from £32.92 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

2 months at one 15 mg dose. The pack holds 900 mg in total.

About Biotics Research

All 7 Biotics Research products, priced per dose

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