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.

perdose
Updated

Home › Amino acids & derivatives › N-Acetyl Cysteine

Vitamin G NutraceuticalsAmino acids & derivatives

NAC, 50 capsules

£18.99 for 50 capsules at Healf. That works out at 46p per 600 mg, which ranks it 23rd of the 28 N-Acetyl Cysteine NAC products we price across 5 UK retailers.

What it really costs, per 600 mg46pOne 600 mg dose is our comparison unit for N-Acetyl Cysteine. It is not a recommendation.
A day46p
A week£3.19
A month£13.67
A year£166.35

At one 600 mg dose a day, this pack lasts 42 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

  • Servings: 50 ÷ 1 per serving = 50
  • In the pack: 50 × 500 mg = 25 g
  • £18.99 ÷ 25 g × 600 mg = 45.6p per 600 mg
  • A week 45.6p × 7 = £3.19 · a month × 30 = £13.67 · a year × 365 = £166.35
  • 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 →
NAC + Glycine PowderHealf · 1.8 g a serving · £9.79 a month · a pack lasts 3 months33p£29.38View at Healf (opens in a new tab)
NAC - N-AcetylcysteineHealf · 500 mg a serving · £10.07 a month · a pack lasts 5 months34p£50.33View at Healf (opens in a new tab)
NAC (N-Acetyl L-Cysteine)Healf · 500 mg a serving · £10.65 a month · a pack lasts 50 days36p£17.75View at Healf (opens in a new tab)
NAC (N-AcetylCysteine) 600mgHealf · 600 mg a serving · £11.09 a month · a pack lasts 2 months37p£22.18View at Healf (opens in a new tab)
NAC (N-Acetyl L-Cysteine)W-Wellness · 500 mg a serving · £13.19 a month · a pack lasts 50 days44p£21.99View at W-Wellness (opens in a new tab)
This productHealf · 500 mg a serving · £13.67 a month · a pack lasts 42 days46pshown above

Switching to the Healf pack saves £3.88 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
500 mg per serving (stated on the label)
Pack
50 capsules · 50 servings · 1 capsule(s) a serving
Cost per serving
38p (50 servings in the pack)
More label details
Sold by
Healf
What the listing says
“50 capsules” · “Servings Per Container: 50” · “Serving Size: 1 capsule” · “N-acetyl-L-cysteine ; 500 mg”
Ingredients

N-acetyl-L-cysteine, Gelatin Capsule.

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 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
£18.99Healf
First recorded
£18.991 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. First checked at Healf: £18.99

Questions about this product

How much does Vitamin G Nutraceuticals NAC cost per 600 mg?

46p per 600 mg, from £18.99 for 50 capsules at Healf, checked on 20 October 2026.

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

No, it is 23rd of 28. N Acetyl L Cysteine (NAC) at Bulk works out at 4p per 600 mg.

How long does one pack last?

42 days at one 600 mg dose. The pack holds 25 g in total.

Keep comparing

All N-Acetyl CysteineEvery form, cheapest per 600 mg firstN-Acetyl Cysteine guideWhat it is, why people take it, how the forms differAmino acids & derivativesEverything else we price in this categoryN-Acetyl Cysteine price historyEvery N-Acetyl Cysteine product's price per dose and price historyBuild a basketThe cheapest way to buy several at onceHow we compareWhere every number on this page comes from