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Amino acids & derivatives

L-Glutamine 850 mg, 90 capsules

£21.49 for 90 capsules at Healf. That works out at £1.40 per 5 g, which ranks it 22nd of the 29 L-glutamine products we price across 9 UK retailers.

What it really costs, per 5 g£1.40One 5 g dose is our comparison unit for L-Glutamine. It is not a recommendation.

A day£1.40

A week£9.83

A month£42.14

A year£512.67

At one 5 g dose a day, this pack lasts 15 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 × 850 mg = 76.5 g
£21.49 ÷ 76.5 g × 5 g = £1.40 per 5 g
A week £1.40 × 7 = £9.83 · a month × 30 = £42.14 · a year × 365 = £512.67
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 →

Designs for HealthL-Glutamine PowderHealf · 3 g a serving · £26.70 a month · a pack lasts 3 months89p£88.99View at Healf

Designs for HealthL-Glutamine PowderHealf · 3 g a serving · £28.79 a month · a pack lasts 50 days96p£47.99View at Healf

I-Glutamine PowderHealf · 3 g a serving · £33.83 a month · a pack lasts 44 days£1.13£49.54View at Healf

L-Glutamine 500mg CapsulesLamberts Healthcare (Nature's Best) · 500 mg a serving · £36.50 a month · a pack lasts 9 days£1.22£10.95View at Lamberts Healthcare

L-Glutamine CapsulesBio-Synergy · 2 g a serving · £36.65 a month · a pack lasts 18 days£1.22£21.99View at Bio-Synergy

This productHealf · 850 mg a serving · £42.14 a month · a pack lasts 15 days£1.40shown above

Switching to the Healf pack saves £15.44 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: 850 mg per serving (stated on the label)
Pack: 90 capsules · 90 servings · 1 capsule(s) a serving
Cost per serving: 24p (90 servings in the pack)

More label details

Claimed on the listing: vegetarian
Sold by: Healf
What the listing says: “90 capsules” · “Servings Per Container: 90” · “Serving Size: 1 capsule” · “L-Glutamine (Free-Form) ; 850 mg”

Ingredients

L-Glutamine (Free-Form), Vegetarian Capsule (Cellulose, Water), Antioxidant (Ascorbyl Palmitate)

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

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Daily dosemgFordays

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: £21.491 Oct at Healf
Highest recorded: £32.1015 Oct at W-Wellness
First recorded: £21.491 Oct
Checked on: 20 dayssince 1 Oct

Healf
W-Wellness

Pack price at each check.

15 OctFirst checked at W-Wellness: £32.10
8 Oct Down at Healf: £22.49 → £21.49 (−4.4%)
6 Oct Up at Healf: £21.49 → £22.49 (+4.7%)

1 earlier entry

1 OctFirst checked at Healf: £21.49

Questions about this product

How much does Pure Encapsulations L-Glutamine 850 mg cost per 5 g?

£1.40 per 5 g, from £21.49 for 90 capsules at Healf, checked on 20 October 2026.

Is it the cheapest L-glutamine in the UK?

No, it is 22nd of 29. Glutamine Peptides Powder at Bulk works out at 6p per 5 g.

How long does one pack last?

15 days at one 5 g dose. The pack holds 76.5 g in total.

About Pure Encapsulations

All 135 Pure Encapsulations products, priced per dose

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