NAC (N-Acetyl-L-Cysteine), 90 capsules
£14.45 for 90 capsules at Healf. That works out at 19p per 600 mg, which ranks it 13th of the 28 N-Acetyl Cysteine NAC products we price across 5 UK retailers.
At one 600 mg dose a day, this pack lasts 2 months. 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 × 500 mg = 45 g
- £14.45 ÷ 45 g × 600 mg = 19.3p per 600 mg
- A week 19.3p × 7 = £1.35 · a month × 30 = £5.78 · a year × 365 = £70.32
- 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 →
Switching to the Healf pack saves £2.48 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
- 90 capsules · 90 servings · 1 capsule(s) a serving
- Cost per serving
- 16p (90 servings in the pack)
More label details
- Claimed on the listing
- vegan
- Sold by
- Healf
- What the listing says
- “90 caps” · “Servings Per Container: 90” · “Serving Size: 1 Capsule” · “N-Acetyl-L-Cysteine ; 500 mg”
Ingredients
N-Acetyl-L-Cysteine, Hypromellose Capsule, Bulking Agent (Microcrystalline Cellulose), Antioxidant (Ascorbyl Palmitate), L-Leucine, Anti-Caking Agent (Silicon Dioxide)
From the Healf listing. Check the pack itself if you have an allergy: labels mark allergens in bold.
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One 600 mg dose is our comparison unit, not a recommendation.
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Filled in from the label’s serving: 1 capsule.
What you paid
Optional. At Healf today: £14.45.
“Order by” allows 3 working days’ delivery from Healf and your spare days.
Price history
No price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.
- Price at every check
- £14.45Healf
- First recorded
- £14.451 Oct
- Checked on
- 20 dayssince 1 Oct
- First checked at Healf: £14.45
Questions about this product
How much does Seeking Health NAC (N-Acetyl-L-Cysteine) cost per 600 mg?
19p per 600 mg, from £14.45 for 90 capsules at Healf, checked on 20 October 2026.
Is it the cheapest N-Acetyl Cysteine NAC in the UK?
No, it is 13th of 28. N Acetyl L Cysteine (NAC) at Bulk works out at 4p per 600 mg.
How long does one pack last?
2 months at one 600 mg dose. The pack holds 45 g in total.
About Seeking Health
All 49 Seeking Health products, priced per dose
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