L-Glutamine Capsules, 90 capsules
£21.99 for 90 capsules at Bio-Synergy. That works out at £1.22 per 5 g, which ranks it 21st of the 29 L-glutamine products we price across 9 UK retailers.
At one 5 g dose a day, this pack lasts 18 days. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- Servings: 90 ÷ 2 per serving = 45
- In the pack: 45 × 2 g = 90 g
- £21.99 ÷ 90 g × 5 g = £1.22 per 5 g
- A week £1.22 × 7 = £8.55 · a month × 30 = £36.65 · a year × 365 = £445.91
- 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-glutamine
All 29, ranked →
Switching to the Healf pack saves £13.03 a month at the same 5 g dose.
Ranked purely by price per 5 g. 54 combination products also contain L-Glutamine.
On the label
- L-Glutamine · L-glutamine
- 2 g per serving (stated on the label)
- Pack
- 90 capsules · 45 servings · 2 capsule(s) a serving
- Cost per serving
- 49p (45 servings in the pack)
More label details
- Barcode
- 5034839001223
- Sold by
- Bio-Synergy
- What the listing says
- “Take two capsules three times a day with water.” · “Take two capsules three times a day with water.” · “Two capsule provide L-Glutamine 2000(mg)” · “confirmed from the retailer's own product page, not this listing's text: form id l_glutamine; amount per serving 2000.0; amount unit mg; amount refers to compound; pack units 90; pack unit type capsule; units per serving 2.0”
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One 5 g dose is our comparison unit, not a recommendation.
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Filled in from the label’s serving: 2 capsules.
What you paid
Optional. At Bio-Synergy today: £21.99.
“Order by” allows 5 working days’ delivery from Bio-Synergy and your spare days.
Price history
No price change since 23 September 2026. Checked on 27 days, most recently 20 October 2026.
- Price at every check
- £21.99Bio-Synergy
- First recorded
- £21.9923 Sept
- Checked on
- 27 dayssince 23 Sept
- First checked at Bio-Synergy: £21.99
Questions about this product
How much does Bio-Synergy L-Glutamine Capsules cost per 5 g?
£1.22 per 5 g, from £21.99 for 90 capsules at Bio-Synergy, checked on 20 October 2026.
Is it the cheapest L-glutamine in the UK?
No, it is 21st of 29. Glutamine Peptides Powder at Bulk works out at 6p per 5 g.
How long does one pack last?
18 days at one 5 g dose. The pack holds 90 g in total.
About Bio-Synergy
Founded 1997 · London, England
Bio-Synergy is a sports nutrition company founded in 1997 by Daniel Herman, who remains a director. It is based on Finchley Road in London and says its products are made in the UK.
All 29 Bio-Synergy products, priced per doseVisit Bio-Synergy (opens in a new tab)
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