BioStacks
Best for
Ingredients (4)
L-Leucine
100%Dose
2600 mg
Target
2000–5000 mg
Form
—
L-Isoleucine
100%Dose
1600 mg
Target
1500–4000 mg
Form
—
Whey Protein
100%Dose
25 g
Target
20–30 g
Form
Not listed
L-Valine
93%Dose
1400 mg
Target
1500–4000 mg
Form
—
Nutrition
Calories, macros & sodium.
- Sodium200 mg
Other Ingredients (8)
SucraloseSweetener
Dose context matters. As a trace excipient in a tablet coating or capsule, the amount is minimal and not a meaningful concern. The evidence below applies to the gram-level intakes typical of sweetened protein powders, pre-workouts, and drink mixes: a 2022 human trial (Suez et al., Cell) showed sucralose disrupts gut bacteria and worsens blood sugar control in healthy adults, and a 2023 study (Schiffman et al.) found that sucralose-6-acetate — a compound formed when sucralose is digested — was genotoxic to human cells in vitro. It remains an artificial sweetener with no nutritional purpose.
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.
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.
Bacillus coagulansProbiotic
A spore-forming lactic-acid bacterium used as a shelf-stable probiotic.
CocoaFlavor
Common food ingredient used for chocolate flavoring in supplements
ProteaseEnzyme
Class of proteolytic enzymes (typically from Aspergillus niger/oryzae or pineapple/papaya) that break peptide bonds in dietary protein
Sea SaltFlavor
Basic food-grade salt used for taste in supplements
Xanthan GumThickener
Natural thickener from fermented carbohydrates
How to Take It
Take it anytime
Total daily protein is what matters — the post-workout "anabolic window" has not held up in controlled trials.
With or without food
On the label
Mix 35g (approx. 1 scoop) with 300ml of water and consume 30 minutes before and/or after exercise. This product is intended to be used alongside a varied and balanced diet and a healthy lifestyle.
General guidance based on the ingredients, not a substitute for the label or your doctor.
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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.