BioStacks
Ingredients (3)
QU995 Quercetin
100%Dose
600 mg
Target
500–1000 mg
Form
—
N-Acetyl-L-Cysteine (NAC)
100%Dose
600 mg
Target
600–1800 mg
Form
—
Serrapeptase (2,200 U/mg)
10 mgUnit not recognized — not scored
Other Ingredients (1)
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
How to Take It
Take it anytime
Poorly absorbed on its own — take with a fat-containing meal.
With a meal containing fat
NAC does better on an empty stomach, but something else in this bottle needs food. Taking the whole product with a meal is the better trade — an upset stomach is why most people stop.
On the label
Take 2 Vegan Capsules daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$21.99
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.