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Nutricost N-Acetyl L-Cysteine (NAC) Capsules

N-Acetyl L-Cysteine (NAC) Capsules

91A
Grade A · capsule · 120 servings · $16.67
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Scored by the Formulate Research Team · Last reviewed July 2026

AntioxidantsImmune SupportHealthy AgingHeart HealthLiver Support

Overview: Nutricost N-Acetyl L-Cysteine (NAC) Capsules

Nutricost N-Acetyl L-Cysteine (NAC) Capsules — capsule format. Contains Vegan N-Acetyl L-Cysteine. Supports: Immune Support, Healthy Aging, Heart Health, Liver Support. NSF Certified, GMP Certified, Third Party Tested certified.

Score Breakdown

Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.

Evidence Qualityweight 40%
85/ 100
Dose Adequacyweight 35%
95/ 100
Form/Bioavailabilityweight 25%
95/ 100
Transparencyweight 0%
100/ 100
Safety/Redundancyweight 0%
100/ 100
Manufacturing Qualityweight 0%
84/ 100

Ingredients per Serving

IngredientAmount
Vegan N-Acetyl L-CysteineNAC3 papers, no controlled trials600 mg

Certifications & Testing

NSF CertifiedGMP CertifiedThird Party TestedGluten FreeNon-GMOVeganOrganic

Other Ingredients

Hypromellose (cellulose) capsule, magnesium stearate (vegetable source), rice flour, stearic acid (vegetable source)

Recommended Use

With food

Take 1 Capsule daily with a meal and water, or as directed by a healthcare professional.

Warnings

These statements have not been evaluated by the Food and Drug Administration.

Frequently Asked Questions

What is Nutricost N-Acetyl L-Cysteine (NAC) Capsules's Formulate score?

Nutricost N-Acetyl L-Cysteine (NAC) Capsules scores 91 out of 100 (grade A) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.

Is Nutricost N-Acetyl L-Cysteine (NAC) Capsules worth it?

Nutricost N-Acetyl L-Cysteine (NAC) Capsules scores 91/100 (grade A). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.

What's in Nutricost N-Acetyl L-Cysteine (NAC) Capsules?

Each serving contains Vegan N-Acetyl L-Cysteine (600 mg). Serving size: 1 Capsule. 120 servings per container.

How do I take n-acetyl l-cysteine (nac) capsules?

Take 1 Capsule daily with a meal and water, or as directed by a healthcare professional.

Who makes N-Acetyl L-Cysteine (NAC) Capsules?

N-Acetyl L-Cysteine (NAC) Capsules is made by Nutricost. See Formulate's full grade and product lineup for Nutricost on its brand page.

Is Nutricost N-Acetyl L-Cysteine (NAC) Capsules third-party tested?

Nutricost lists the following certifications and testing for this product: NSF Certified, GMP Certified, Third Party Tested, Gluten Free, Non-GMO, Vegan, Organic.

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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.