# Cheapest NAC (N-Acetyl Cysteine)

The cheapest NAC (N-Acetyl Cysteine) now costs £9.16 per 100 capsules, the lowest of 28 products from 15 stores. Scanned again every day.

The first 10 of the ranking, updated 7 November 2026

| Product | Store | Per 100 capsules | Total |
| --- | --- | --- | --- |
| [N-Acetyl Cysteine Capsules](https://supplementscanner.co.uk/p/weightworld-uk-n-acetyl-cysteine-capsules-383070) | WeightWorld | £9.16 per 100 capsules | £16.48 |
| [Fortitude Nutrition NAC N-Acetyl-Cysteine](https://supplementscanner.co.uk/p/fortitude-nutrition-fortitude-nutrition-nac-n-acetyl-cysteine-367607) | The Supplement Store | £12.46 per 100 capsules | £14.95 |
| [Engineered Muscle - NAC 1000mg](https://supplementscanner.co.uk/p/engineered-muscle-engineered-muscle-nac-1000mg-378715) | The Supplement Shop | £16.66 per 100 capsules | £19.99 |
| [Lamberts N-Acetyl Cysteine (Nac) 300mg - 90 Caps](https://supplementscanner.co.uk/p/lamberts-lamberts-n-acetyl-cysteine-nac-300mg-90-caps-370937) | Right Nutri | £18.06 per 100 capsules | £16.25 |
| [LAMBERTS LAMBERTS NAC - N-Acetyl Cysteine - 90 x 300mg Capsules](https://supplementscanner.co.uk/p/lamberts-lamberts-lamberts-nac-n-acetyl-cysteine-90-x-300mg-capsules-295082) | bodykind | £19.94 per 100 capsules | £17.95 |
| [N-Acetyl Cysteine (NAC) 300mg](https://supplementscanner.co.uk/p/lamberts-n-acetyl-cysteine-nac-300mg-381208) | Lamberts | £19.94 per 100 capsules | £17.95 |
| [Spring Valley NAC 1000 mg Vegetarian Capsules 100 Count](https://supplementscanner.co.uk/p/spring-valley-nac-1000-mg-vegetarian-capsules-100-count-215724) | Discount Health Products | £19.99 per 100 capsules | £19.99 |
| [Lamberts NAC N-Acetyl Cysteine 300mg - 90 Capsules](https://supplementscanner.co.uk/p/lamberts-lamberts-nac-n-acetyl-cysteine-300mg-90-capsules-150742) | Vitamin Planet | £20.46 per 100 capsules | £18.41 |
| [Doctors Best Doctors Best NAC Detox Regulators - 60 Vegicaps](https://supplementscanner.co.uk/p/doctors-best-doctors-best-doctors-best-nac-detox-regulators-60-vegicaps-294470) | bodykind | £21.32 per 100 capsules | £12.79 |
| [Doctors Best NAC Detox Regulators 60Vcaps](https://supplementscanner.co.uk/p/doctors-best-doctors-best-nac-detox-regulators-60vcaps-376113) | Sovital | £21.65 per 100 capsules | £12.99 |

## Frequently asked questions

### What is the cheapest NAC (N-Acetyl Cysteine) right now?

The lowest price is now £9.16 per 100 capsules, for N-Acetyl Cysteine Capsules at WeightWorld. Our scanner checks prices daily, so the ranking on this page is up to date.

### Why do we compare NAC (N-Acetyl Cysteine) per capsule?

Bottles differ in capsule count and dosage, so only the price per capsule shows what you really pay. We convert every price to the same unit, so you're comparing like with like.

### How many stores are scanned for NAC (N-Acetyl Cysteine)?

This comparison currently includes 28 products from 15 stores. Our scanner keeps re-reading the whole market, so new products and price changes appear automatically.

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Source: Supplementscanner, https://supplementscanner.co.uk/category/nac (live prices per product)