Metabolic Nutrition

NAC, 90 Capsules (650 mg per Capsule)

Name: NAC, 90 Capsules (650 mg per Capsule)
Brand: Metabolic Nutrition
Rating: 5.0 (1 reviews)

What We Researched

1 active ingredient analyzed · 3 inactive ingredients decoded · 1 retailer compared · Last updated: Mar 2026

100

Product Score Excellent

Product Analysis

Transparency Excellent

Supplement Facts

Ingredient	Amount	% DV
NAC (N-Acetyl L-Cysteine)	650 mg	0%

Bioavailability Excellent

Absorption Rating

NAC (N-Acetyl L-Cysteine) Good

Other Ingredients Excellent

Fillers & Additives

Mcc
Magnesium Stearate
Silicon Dioxide

Efficacy Excellent

Dosage Analysis

NAC (N-Acetyl L-Cysteine) 650 mg Effective

Supplement Facts

Ingredient	Amount	% Daily Value
NAC (N-Acetyl L-Cysteine)	650 mg	0%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Mcc Unknown

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Price Comparison

iHerb $13.99 $0.16 / serving

Best Price

Price History

Tracked across major retailers. Updated periodically.

iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report

Transparency

2 claims

In House Testing — Verified Source

Violation History

1 incident

Fda Warning Products Synedrex and E.S.P. Extreme were found to contain 2-aminoisoheptane (DMHA), an ingredient that the FDA considers to be a new dietary ingredient for which a New Dietary Ingredient notification is required and has not been submitted. The FDA stated that in the absence of such a notification, the products were considered adulterated.2019-04-10Source

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Frequently Asked Questions

Is Metabolic Nutrition NAC, 90 Capsules (650 mg per Capsule) a good supplement?

Metabolic Nutrition NAC, 90 Capsules (650 mg per Capsule) 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 90 servings per container. Of the 3 inactive ingredients, 2 are rated safe and 0 are flagged for review.

What are the ingredients in Metabolic Nutrition NAC, 90 Capsules (650 mg per Capsule)?

Metabolic Nutrition NAC, 90 Capsules (650 mg per Capsule) contains 1 active ingredients: NAC (N-Acetyl L-Cysteine) (650 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Metabolic Nutrition NAC, 90 Capsules (650 mg per Capsule) safe to take?

Metabolic Nutrition NAC, 90 Capsules (650 mg per Capsule) 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.

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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. 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.