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Designs for HealthAmino acids & derivatives

N-Acetyl-L-Cysteine, 120 capsules

£41.99 for 120 capsules at Healf. That works out at 23p per 600 mg, which ranks it 14th of the 28 N-Acetyl Cysteine NAC products we price across 5 UK retailers.

What it really costs, per 600 mg23pOne 600 mg dose is our comparison unit for N-Acetyl Cysteine. It is not a recommendation.

A day23p

A week£1.63

A month£7.00

A year£85.15

At one 600 mg dose a day, this pack lasts 6 months. 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 × 900 mg = 108 g
£41.99 ÷ 108 g × 600 mg = 23.3p per 600 mg
A week 23.3p × 7 = £1.63 · a month × 30 = £7.00 · a year × 365 = £85.15
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 N-Acetyl Cysteine NAC

All 28, ranked →

VitaBrightNAC - N-Acetyl Cysteine 600mg 180 x Vegan Capsules - Max Strength - 1 BottleVitaBright · 600 mg a serving · £3.33 a month · a pack lasts 6 months11p£19.99View at VitaBright

Nac-Acetyl Cysteine 600mgHealf · 600 mg a serving · £3.41 a month · a pack lasts 8 months11p£28.45View at Healf

N-Acetyl-L-CysteineHealf · 600 mg a serving · £4.59 a month · a pack lasts 2 months15p£9.17View at Healf

PRO NAC 600 MGHealf · 600 mg a serving · £5.69 a month · a pack lasts 2 months19p£11.38View at Healf

NAC (N-Acetyl-L-Cysteine)Healf · 500 mg a serving · £5.78 a month · a pack lasts 2 months19p£14.45View at Healf

Designs for HealthThis productHealf · 900 mg a serving · £7.00 a month · a pack lasts 6 months23pshown above

Switching to the VitaBright pack saves £3.67 a month at the same 600 mg dose.

Ranked purely by price per 600 mg. 44 combination products also contain N-Acetyl Cysteine.

On the label

N-Acetyl Cysteine · NAC: 900 mg per serving (stated on the label)
Pack: 120 capsules · 120 servings · 1 capsule(s) a serving
Cost per serving: 35p (120 servings in the pack)

More label details

Claimed on the listing: gluten-free
Sold by: Healf
What the listing says: “120 caps” · “Servings Per Container: 120” · “Serving Size: 1 capsule” · “N-Acetyl-L-Cysteine ; 900 mg”

Ingredients

N-Acetyl-L-Cysteine, Cellulose (Capsule), Anti-Caking Agent (Vegetable Stearate), Anti-Caking Agent (Silicon Dioxide), 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 600 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: £41.99Healf
First recorded: £41.991 Oct
Checked on: 20 dayssince 1 Oct

Pack price at each check.

1 OctFirst checked at Healf: £41.99

Questions about this product

How much does Designs for Health N-Acetyl-L-Cysteine cost per 600 mg?

23p per 600 mg, from £41.99 for 120 capsules at Healf, checked on 20 October 2026.

Is it the cheapest N-Acetyl Cysteine NAC in the UK?

No, it is 14th of 28. N Acetyl L Cysteine (NAC) at Bulk works out at 4p per 600 mg.

How long does one pack last?

6 months at one 600 mg dose. The pack holds 108 g in total.

About Designs for Health

All 118 Designs for Health products, priced per dose

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