Swanson NAC N-Acetyl Cysteine Liver Health and Antioxidant Supplement for Adults Seeking…
- Combination Supplement
- Capsule
- all natural
- 100
- Better rated than 59%
- More reviewed than 80%
A single-ingredient, vegan NAC capsule at 600 mg, suited to buyers who want a plain antioxidant supplement without an added blend.
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How it ranks among the 61 combination supplement we track
4.6★ across 2,177 Amazon ratings, Bayesian-smoothed toward the category average.
2,177 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
1,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 61 combination supplement we track - how the scorecard works · full combination supplement data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
100 vegan capsules of N-Acetyl Cysteine (NAC) at 600 mg each, gluten free, positioned toward liver health and antioxidant support.
NAC is an amino acid derivative that the body uses as a building block for glutathione, one of its main internal antioxidants, which is why it turns up in detox and liver-support formulas. Swanson's version is a single-ingredient capsule rather than a stacked blend, with 100 capsules covering roughly three months at one a day.
- 600 mg N-Acetyl Cysteine per capsule
- 100 vegan capsules
- Marketed for liver and antioxidant support
- Gluten free formula
Who it's for
Buyers wanting a straightforward, single-ingredient NAC capsule for antioxidant or liver support, in a vegan and gluten-free format.
Strengths and trade-offs
Drawn from this product's published specifications.
- 600 mg NAC per capsule
- 100 count, about three months' supply
- Single ingredient formula, no added cofactors
- 100 count is a modest supply for ongoing daily use
Performance notes
NAC's stated benefit areas in the listing include detoxing and liver, heart, brain and anti-aging support, all tied to its role as a precursor for the body's glutathione production. The formula is single-ingredient, so nothing else is added to the 600 mg NAC dose per capsule.
Specifications
| Brand | Swanson |
|---|---|
| Model | SWA038 |
| Form | Capsule |
| Supplement Type | all natural |
| Count | 100 |
| Flavor | Unflavored |
| Benefits | Anti-Aging, Brain Health Support, Detoxing, Heart Health Support |
| Diet | Gluten Free |
| Allergens | Gluten Free |
How it compares
This product against the closest alternatives we track in combination supplement.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Swanson NAC N-Acetyl Cysteine Liver Health and Antioxidant Supplement for Adults Seeking…This product | 4.6 / 5 | 2,177 | 4.4 / 5 |
| Carlyle Tart Cherry Extract CapsulesCarlyle | 4.6 / 5 | 11,200 | 4.6 / 5 |
| Integrative Therapeutics Active B-ComplexIntegrative | 4.6 / 5 | 7,500 | 4.6 / 5 |
| Heliocare Skin Care Dietary Supplement: 240mg Polypodium Leucotomos Extract PillsHeliocare | 4.6 / 5 | 5,700 | 4.5 / 5 |
| Pure Encapsulations NAC 600 mgPURE | 4.7 / 5 | 3,800 | 4.6 / 5 |
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Questions about the Swanson SWA038
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How much NAC is in each Swanson capsule?
600 mg of N-Acetyl Cysteine per vegan capsule.
How many capsules are in the bottle?
100 vegan capsules.
Is Swanson NAC gluten free?
Yes, the listing states it is gluten free.