Jarrow NAC Sustain 600mg

Jarrow Formulas · Tablet · 600 mg

Price/day

€0.28

Dose

600 mg

Servings/pack

100

Pack price

€28.00

Transparency Index

7.7/10

Recommended A good choice for those wanting NAC spread out over the day rather than a single peak.

Rating breakdown

Evidence for ingredient 8.0/10

NAC has evidence for respiratory support, as a glutathione precursor, and antioxidant protection.

Value for money 7.0/10

€0.28 per serving is reasonable for a sustained-release formulation.

Product quality 8.0/10

Dual-layer tablets manufactured under cGMP.

Label honesty 8.0/10

Clearly explains the sustained-release mechanism and excipients; no exaggerated claims.

Third-party testing 7.0/10

Jarrow tests internally, but no additional third-party seal.

Product Description

Jarrow combines a fast-releasing layer with a slow-dissolving matrix, so part of the 600 mg NAC is available immediately while the rest releases over several hours.

What We Like

Sustained release: More stable blood levels than standard capsules
Travel-friendly: Tablets require no measuring
Glutathione support: NAC serves as a precursor to endogenous glutathione
Jarrow quality: Reliable batch-level quality controls

What We’re Missing

Sulfur odor: May cause a mild sulfurous aftertaste in sensitive individuals
No third-party certification: An external seal would be particularly useful for a regulatory-sensitive ingredient

Usage Recommendation

1 tablet one to two times daily between meals with water. If stomach-sensitive, take with a small meal.

Other NAC (N-Acetylcysteine) products

Life Extension N-Acetyl-L-Cysteine 600mg

8.1/10

Recommended

Pure Encapsulations NAC 900mg

Nutricost NAC 600 mg

Ingredient dossier

NAC is a glutathione precursor with established medical use. As a longevity supplement (especially as GlyNAC), early human data is promising but limited.

Read full dossier: NAC (N-Acetylcysteine) →