BioStacks
Best for
Ingredients (5)
Vitamin C
100%Dose
75 mg
Target
50–250 mg
Form
Budget
Stinging Nettles
33%Dose
100 mg
Target
300–600 mg
Form
Budget
Quercetin Dihydrate
20%Dose
100 mg
Target
500–1000 mg
Form
—
N-Acetyl-L-Cysteine
2%Dose
12 mg
Target
600–1800 mg
Form
—
Bromelain
25 mgUnit not recognized — not scored
Other Ingredients (9)
SucroseSweetener
Added sugars and high glycemic load; dental caries risk
XylitolSweetener
A FODMAP sugar alcohol that can cause GI distress (bloating, gas, diarrhea) at moderate doses (>10-20g/day), though supplement amounts are typically small. Extremely toxic to dogs — households with pets should store securely.
Fruit Juice (unspecified)Colorant
Juice or juice concentrate used primarily for natural color and flavor in gummies
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Natural Vanilla PowderFlavor
A dried natural vanilla flavoring powder
Mixed TocopherolsAntioxidant
Natural vitamin E used as preservative
Stevia ExtractSweetener
Zero-calorie natural sweetener extracted from the leaves of Stevia rebaudiana
Sodium Stearyl FumarateLubricant
A standard tablet/capsule lubricant, often used in place of magnesium stearate.
How to Take It
Take it anytime
What's in this absorbs poorly without a fat-containing meal — take it with one.
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
1 tablet as needed or as recommended by your health care professional.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$51.77
Pricier than 92% of 28 stinging nettle 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.