BioStacks
Best for
Ingredients (4)
Coenzyme Q10
100%Dose
100 mg
Target
100–300 mg
Form
—
Pyrroloquinoline Quinone Disodium Salt
100%Dose
10 mg
Target
10–20 mg
Form
—
L-Glutathione
100%Dose
250 mg
Target
250–1000 mg
Form
Budget
NAC
43%Dose
255 mg
Target
600–1800 mg
Form
—
Other Ingredients (3)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
HypromelloseCapsule
Plant-derived capsule material from cellulose
How to Take It
Take it anytime
Fat-soluble — absorbs far better with a fat-containing meal. Time of day doesn't matter.
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
Use only as directed. Take 1 VegCap with a meal or glass of water. Store in a cool, dry place.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$43.59
Pricier than 73% of 31 PQQ 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.