BioStacks
Best for
Ingredients (1)
N-Acetyl-L-Cysteine (free-form)
100%Dose
600 mg
Target
600–1800 mg
Form
—
Other Ingredients (3)
Ascorbyl PalmitateAntioxidant
Fat-soluble form of vitamin C used as preservative
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
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 1 capsule, 1-3 times daily, between meals.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$36.00
Pricier than 80% of 77 NAC supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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.