🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 60% of ingredients have research evidence
A Label Compliance Grade

Product Label

📸

Have a supplement label? Find it here.

Upload a photo of any supplement label to search our database of 92,312 products.

Label Data

1 Capsule(s) Serving Size
90 Servings
Other Combinations Product Type
60% Evidence Coverage

Supplement Facts — Evidence Check

Shiitake Mushroom
250 mg
📊 Market median: 600.0mg (7 products) 📚 39 studies (Tier A: 2, B: 13)
This product: 50mg
50 mg
📊 Market median: 300.0mg (159 products)
Median 300.0mg This product: 50mg
📊 Market median: 250.0mg (562 products) 📚 53 studies (Tier A: 0, B: 19)
This product: 50mg
📊 Market median: 450.0mg (254 products) 📚 240 studies (Tier A: 0, B: 100)
This product: 50mg

Other Ingredients

Gelatin Cellulose Magnesium Stearate

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) Women (not pregnant or lactating) Gluten Free

Product Information

📋 Directions for Use

Directions: As a dietary supplement, take 1 capsule three times daily, with meals.

⚠️ 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, do not take this product.

🧪 Formulation Notes

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

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

Made in USA

Nutritionally supports healthy liver function

Gluten free

Additional Information

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

Product Details

UPC / SKU 3 64175 10790 3
DSLD Entry Date 2022-02-23
Product Type Other Combinations
Form Capsule
Brand Foster Regal
DSLD ID 259926
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 →

Compare Similar Products

View all Nac products →