BioStacks
GNC

N-Acetyl-L-Cysteine NAC 600 mg

1 Capsule · 120 servings · $0.21/serving

iHerbAmazon

Best for

Liver

Ingredients (1)

N-Acetyl-L-Cysteine

100%

Dose

600 mg

Target

600–1800 mg

Form

—

Other Ingredients (5)

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

HypromelloseCapsule

Plant-derived capsule material from cellulose

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Sea SaltFlavor

Basic food-grade salt used for taste in supplements

How to Take It

Take it anytime

Best absorbed between meals, away from food.

On an empty stomach

On the label

As a dietary supplement, take one to two capsules daily.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$24.99

$10$20$50

Near the median of 74 NAC supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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