Walgreens NAC supplement bottle
Walgreens

NAC Review

What We Researched
1 active ingredient analyzed · 5 inactive ingredients decoded · 1 brand certification checked · Last updated: Aug 2026
100
Product Score Excellent
65
Brand Score Fair

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
N-Acetyl Cysteine (NAC 600 mg —
Bioavailability Excellent

Absorption Rating

  • N-Acetyl Cysteine (NAC Good
Other Ingredients Excellent

Fillers & Additives

  • Gelatin
  • Calcium Carbonate
  • Peppermint flavor
  • Magnesium Stearate
  • Silica
Efficacy Excellent

Dosage Analysis

  • N-Acetyl Cysteine (NAC 600 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
N-Acetyl Cysteine (NAC 600 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Calcium Carbonate Safe

Acts as a filler and provides supplemental calcium.

Peppermint flavor Unknown
Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Brand Trust Report
Walgreens

· 38 products · walgreens.com/

Certifications

1 certification
Non-GMO Project Verified Verified

Transparency

2 claims
Third Party Testing Claim — True
Testing Lab Disclosure — True
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Frequently Asked Questions
Is Walgreens NAC a good supplement?

Walgreens NAC received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients with 60 servings per container. Of the 5 inactive ingredients, 4 are rated safe and 0 are flagged for review. The manufacturer, Walgreens, holds a brand trust score of 65/100 with 1 verified certifications including Non-GMO Project Verified.

What are the ingredients in Walgreens NAC?

Walgreens NAC contains 1 active ingredients: N-Acetyl Cysteine (NAC (600 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Walgreens NAC safe to take?

Walgreens NAC has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Walgreens a trustworthy supplement brand?

Walgreens receives a brand trust score of 65/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. the company offers 38 products in their lineup. They hold 1 verified certifications including Non-GMO Project Verified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.