We earn commission on purchases made through our links. It never affects ranking: tables are ordered purely by price per dose, and no retailer or brand can pay for position.We earn commission when you buy through our links. It never affects the ranking. Full disclosure.

NOW FoodsAmino acids & derivatives

L-Glutamine 500mg, 120 capsules

£9.45 for 120 capsules at Healf. That works out at 79p per 5 g, which ranks it 16th of the 29 L-glutamine products we price across 9 UK retailers.

What it really costs, per 5 g79pOne 5 g dose is our comparison unit for L-Glutamine. It is not a recommendation.
A day79p
A week£5.51
A month£23.62
A year£287.44

At one 5 g dose a day, this pack lasts 12 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

  • Servings: 120 ÷ 1 per serving = 120
  • In the pack: 120 × 500 mg = 60 g
  • £9.45 ÷ 60 g × 5 g = 78.7p per 5 g
  • A week 78.7p × 7 = £5.51 · a month × 30 = £23.62 · a year × 365 = £287.44
  • 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 →
Liposomal L-Glutamine PowderHealf · 5 g a serving · £16.74 a month · a pack lasts 3 months56p£50.21View at Healf (opens in a new tab)
L-Glutamine PowderHealf · 5 g a serving · £17.18 a month · a pack lasts 3 months57p£52.45View at Healf (opens in a new tab)
L-GlutamineHealf · 5 g a serving · £18.25 a month · a pack lasts 2 months61p£36.49View at Healf (opens in a new tab)
L-Glutamine PowderHealf · 5 g a serving · £19.50 a month · a pack lasts 30 days65p£19.50View at Healf (opens in a new tab)
L-Glutamine PowderHealf · 5 g a serving · £22.46 a month · a pack lasts 40 days75p£29.95View at Healf (opens in a new tab)
This productHealf · 500 mg a serving · £23.62 a month · a pack lasts 12 days79pshown above

Switching to the Healf pack saves £6.89 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
500 mg per serving (stated on the label)
Pack
120 capsules · 120 servings · 1 capsule(s) a serving
Cost per serving
8p (120 servings in the pack)
More label details
Claimed on the listing
vegetarian
Sold by
Healf
What the listing says
“120 vcaps” · “Servings Per Container: 120” · “Serving Size: 1 Veg Capsule” · “L-Glutamine (Free-Form) ; 500 mg”
Ingredients

L-Glutamine (Free-Form), Hypromellose (Cellulose Capsule), Rice Flour, Antioxidant (Ascorbyl Palmitate)

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

Is something wrong? Tell us

Add to your basket

View basket

Your basket prices everything you take together: whole packs, delivery included, from as few websites as you like.

One 5 g dose is our comparison unit, not a recommendation.

Price history

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

Lowest recorded
£8.991 Oct
Highest recorded
£9.4817 Oct
First recorded
£8.991 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. Down at Healf: £9.48 → £9.45 (−0.3%)
  2. Up at Healf: £8.99 → £9.48 (+5.5%)
  3. First checked at Healf: £8.99

Questions about this product

How much does NOW Foods L-Glutamine 500mg cost per 5 g?

79p per 5 g, from £9.45 for 120 capsules at Healf, checked on 20 October 2026.

Is it the cheapest L-glutamine in the UK?

No, it is 16th of 29. Glutamine Peptides Powder at Bulk works out at 6p per 5 g.

How long does one pack last?

12 days at one 5 g dose. The pack holds 60 g in total.

About NOW Foods

More from NOW Foods

Keep comparing