🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

1 Capsule(s) Serving Size
60 Servings
Non-Nutrient/Non-Botanical Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

📊 Market median: 600.0mg (7 products) 📚 39 studies (Tier A: 2, B: 13)
This product: 600mg

Other Ingredients

k-Gelatin natural Peppermint flavor Magnesium Stearate Cellulose

Label Claims — Verification

All Other
Structure/Function
All Other (96% of products) Structure/Function (81% of products) Nutrient (19% of products) No Claim (3% of products)

Target Groups

Adult (18 - 50 Years) Kosher Gluten Free

Product Information

📋 Directions for Use

Directions: As a dietary supplement, take 1 capsule daily.

⚠️ Warnings & Precautions

Tamper Evident: Do not use this product if imprinted foil seal under cap is broken or missing.

Keep out of reach of children.

Caution: If you are pregnant or nursing, consult your physician before taking this product.

🧪 Formulation Notes

Mfg. in an FDA Registered Facility using Good Manufacturing Practices (GMPs)

Antioxidant Neutralizes Cell Damaging Free Radicals

Gluten Free

Made in USA

Ko Kosher Service This product certified KO Kosher

Additional Information

Conforms to USP <2091> for weight. Meets USP <2040> disintegration for maximum bioavailability.

Keep tightly closed. Store at room temperature: 59 degrees - 86 degrees F (15 degrees to 30 degrees C).

Ko Kosher Service

Product Details

UPC / SKU 3 64175 71860 4
DSLD Entry Date 2023-12-14
Product Type Non-Nutrient/Non-Botanical
Form Capsule
Brand Foster Regal
DSLD ID 297008
Data Updated 2026-04-11

Research Evidence

41 Research Sources
51 Avg Quality Score
19 Rct
13 Meta Analysis
9 Clinical Trial
B N-acetylcysteine as an adjuvant therapy for Helicobacter pylori eradication
Meta Analysis The Cochrane database of systematic reviews 2019
B Effect of high-dose N-acetylcysteine on exacerbations and lung function in patients with mild-to-moderate COPD: a double-blind, parallel group, multicentre randomised clinical trial
Rct Nature communications 2024
B N-acetylcysteine for non-paracetamol (acetaminophen)-related acute liver failure
Meta Analysis The Cochrane database of systematic reviews 2020
B Influence of N-acetylcysteine on chronic bronchitis or COPD exacerbations: a meta-analysis
Meta Analysis European respiratory review : an official journal of the European Respiratory Society 2015
B A randomised controlled trial of a mitochondrial therapeutic target for bipolar depression: mitochondrial agents, N-acetylcysteine, and placebo
Rct BMC medicine 2019
B Efficacy of N-acetylcysteine for patients with depression: An updated systematic review and meta-analysis
Meta Analysis General hospital psychiatry 2024
B Cysteine, cystine or N-acetylcysteine supplementation in parenterally fed neonates
Meta Analysis The Cochrane database of systematic reviews 2006
B N-acetylcysteine as an adjunctive treatment for bipolar depression: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Bipolar disorders 2021
B N-acetylcysteine as an adjunctive treatment for bipolar depression and major depressive disorder: a systematic review and meta-analysis of double-blind, randomized placebo-controlled trials
Meta Analysis Psychopharmacology 2020
B N-acetylcysteine Treatment in Chronic Obstructive Pulmonary Disease (COPD) and Chronic Bronchitis/Pre-COPD: Distinct Meta-analyses
Meta Analysis Archivos de bronconeumologia 2024
View all evidence for Nac →

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