BioStacks
Best for
Ingredients (3)
L-Leucine
100%Dose
3000 mg
Target
2000–5000 mg
Form
—
L-Isoleucine
100%Dose
1500 mg
Target
1500–4000 mg
Form
—
L-Valine
100%Dose
1500 mg
Target
1500–4000 mg
Form
—
Other Ingredients (5)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
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.
Citric AcidAcidulant
Natural acid derived from citrus fruits
Malic AcidAcidulant
Naturally occurring organic acid found in apples, used as a flavor enhancer and acidulant in supplements
Stevia ExtractSweetener
Zero-calorie natural sweetener extracted from the leaves of Stevia rebaudiana
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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.