BioStacks
Best for
Ingredients (21)
Leucine
100%Dose
2208 mg
Target
2000–5000 mg
Form
—
Lysine
100%Dose
2232 mg
Target
1000–3000 mg
Form
—
Methionine
100%Dose
528 mg
Target
200–1000 mg
Form
—
Tyrosine
100%Dose
576 mg
Target
500–2000 mg
Form
—
Whey Protein
100%Dose
20 g
Target
20–30 g
Form
Not listed
Nutrition
Calories, macros & sodium.
- Sodium100 mg
Other Ingredients (3)
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.
CocoaFlavor
Common food ingredient used for chocolate flavoring in supplements
Rebaudioside MSweetener
High-purity steviol glycoside (Reb M) used as a natural high-intensity sweetener with minimal aftertaste
How to Take It
Best taken in the evening
Take at night. Other amino acids compete for brain uptake, so a protein-heavy meal blunts it. Take it between meals, away from food.
On an empty stomach
Keep it away from protein-heavy meals
Space it a couple of hours from SAMe
On the label
1 scoop with 10-12 fluid ounces of preferred liquid, as needed, to reach optimal daily protein intake.
Do not combine with St. John's Wort
Each of these raises serotonin activity on top of St. John's Wort, and together they can trigger serotonin syndrome — agitation, rapid heartbeat, raised blood pressure. Not without medical supervision.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$39.95
Pricier than 74% of 797 multivitamins
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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.