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LambertsAmino acids & derivatives

L-Arginine HCl 1000mg, 90 tablets

£23.11 for 90 tablets at Vitamin Planet. That works out at 77p per 3 g, which ranks it 8th of the 12 L-Arginine products we price across 7 UK retailers.

What it really costs, per 3 g77pOne 3 g dose is our comparison unit for L-Arginine. It is not a recommendation.
A day77p
A week£5.39
A month£23.11
A year£281.17

At one 3 g dose a day, this pack lasts 30 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 1 g = 90 g
  • £23.11 ÷ 90 g × 3 g = 77p per 3 g
  • A week 77p × 7 = £5.39 · a month × 30 = £23.11 · a year × 365 = £281.17
  • 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.

Cheaper L-Arginine

All 12, ranked →
L-ArginineHealf · 1 g a serving · £11.30 a month · a pack lasts 40 days38p£15.06View at Healf (opens in a new tab)
ArginineBio-Synergy · 1 g a serving · £12.23 a month · a pack lasts 42 days41p£16.99View at Bio-Synergy (opens in a new tab)
L-Arginine 1000mgLamberts Healthcare (Nature's Best) · 1 g a serving · £13.95 a month · a pack lasts 30 days47p£13.95View at Lamberts Healthcare (opens in a new tab)
L-ArginineHealf · 1 g a serving · £16.10 a month · a pack lasts 20 days54p£10.73View at Healf (opens in a new tab)
L-Arginine Capsules 500mgSimply Supplements · 500 mg a serving · £17.99 a month · a pack lasts 40 days60p£23.99View at Simply Supplements (opens in a new tab)
LambertsThis productVitamin Planet · 1 g a serving · £23.11 a month · a pack lasts 30 days77pshown above

Switching to the Healf pack saves £11.81 a month at the same 3 g dose.

Ranked purely by price per 3 g. 15 combination products also contain L-Arginine.

On the label

L-Arginine · L-Arginine
1 g per serving (stated on the label)
Pack
90 tablets · 90 servings · 1 tablet(s) a serving
Cost per serving
26p (90 servings in the pack)
More label details
Sold by
Vitamin Planet
What the listing says
“90 Tablets” · “L-Arginine HCl 1000mg per tablet”
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One 3 g dose is our comparison unit, not a recommendation.

Price history

No price change since 7 October 2026. Checked on 1 day, most recently 7 October 2026.

Price at every check
£23.11Vitamin Planet
First recorded
£23.117 Oct
Checked on
1 daysince 7 Oct

Checked once so far, on 7 October 2026.

  1. First checked at Vitamin Planet: £23.11

Questions about this product

How much does Lamberts L-Arginine HCl 1000mg cost per 3 g?

77p per 3 g, from £23.11 for 90 tablets at Vitamin Planet, checked on 7 October 2026.

Is it the cheapest L-Arginine in the UK?

No, it is 8th of 12. L Arginine at Bulk works out at 8p per 3 g.

How long does one pack last?

30 days at one 3 g dose. The pack holds 90 g in total.

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