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NAC 1,000 mg

product on market Tablet or Pill LuckyVitamin Safety: 100/100
100/100

This product looks safe

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

What the Evidence Says

AI-generated · Qwen 3.6 · grounded in 1 source · methodology

N-Acetyl Cysteine is a precursor to glutathione that supports antioxidant defenses and respiratory health. There is strong evidence for its role in managing mucus production and protecting cells from oxidative stress. This ingredient is generally well-tolerated with a high safety profile.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for NAC 1,000 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
120
Servings
Non-Nutrient/Non-Botanical
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

1 Gram(s)
Market median: 600.0mg (7 products) 39 studies (A:2, B:13)

Other Ingredients

Microcrystalline Cellulose Hydroxypropyl Methylcellulose Stearic Acid Vegetarian Coating Silicon Dioxide
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Usage: Take 1 tablet 1 to 3 times daily.

Warnings & Precautions

Caution: For adults only.

Consult physician if pregnant/nursing, taking medications (especially nitroglycerin), or have a medical condition.

Keep out of reach of children.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Formulation Notes

N-acetyl cysteine (NAC) is a stable form of the non-essential amino acid cysteine. It is a sulfur-containing amino acid that acts as a stabilizer for the formation of protein structures, and promotes the formation of glutathione. Glutathione is a powerful free radical scavenging compound that also helps to maintain normal, balanced immune system function. In addition, NAC can help to support healthy brain and neuronal tissues.

Natural color variation may occur in this product.

Free radical protection Maintains cellular health

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.

Non-GMO

Guaranteed quality & potency

V Vegan

Additional Information

1 year happiness guarantee

Store in a cool, dry place after opening.

Metadata

Product Details

UPC / SKU8 10026 42091 7
DSLD Entry Date2023-03-22
Product TypeNon-Nutrient/Non-Botanical
FormTablet or Pill
DSLD ID283246
Data Updated2026-04-11
Research

Research Evidence

41
Research Sources
51
Avg Quality
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 PubMed DOI
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 PubMed DOI
B N-acetylcysteine for non-paracetamol (acetaminophen)-related acute liver failure
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
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 PubMed DOI
B A randomised controlled trial of a mitochondrial therapeutic target for bipolar depression: mitochondrial agents, N-acetylcysteine, and placebo
Rct BMC medicine 2019 PubMed DOI
B Efficacy of N-acetylcysteine for patients with depression: An updated systematic review and meta-analysis
Meta Analysis General hospital psychiatry 2024 PubMed DOI
B Cysteine, cystine or N-acetylcysteine supplementation in parenterally fed neonates
Meta Analysis The Cochrane database of systematic reviews 2006 PubMed
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 PubMed DOI
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 PubMed DOI
B N-acetylcysteine Treatment in Chronic Obstructive Pulmonary Disease (COPD) and Chronic Bronchitis/Pre-COPD: Distinct Meta-analyses
Meta Analysis Archivos de bronconeumologia 2024 PubMed DOI
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.