BioStacks
Best for
Ingredients (5)
Phosphatidylcholine
75%Dose
75 mg
Target
100–500 mg
Form
Standard
Proprietary Glutathione Blend
70%Dose
175 mg
Target
250–1000 mg
Form
—
N-Acetyl L-Cysteine
21%Dose
125 mg
Target
600–1800 mg
Form
—
S-Acetyl L-Glutathione
Amount not found
L-Glutathione (reduced)
Amount not found
Other Ingredients (6)
Fruit Juice (unspecified)Colorant
Juice or juice concentrate used primarily for natural color and flavor in gummies
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
Potassium SorbatePreservative
Natural preservative derived from sorbic acid
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
Sunflower LecithinEmulsifier
Non-GMO, non-allergenic emulsifier derived from sunflower seeds
How to Take It
Take it anytime
Take with food — higher doses on an empty stomach commonly cause nausea.
With food
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 1 teaspoon daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$74.75
Pricier than 90% of 56 GSH 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. 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.