BioStacks
Best for
Ingredients (5)
Beta Alanine
100%Dose
3500 mg
Target
3200–6400 mg
Form
—
L-Arginine Alpha-Ketoglutarate
100%Dose
4000 mg
Target
2000–6000 mg
Form
—
L-Citrulline Malate
100%Dose
8000 mg
Target
6000–8000 mg
Form
Standard
Choline Bitartrate
100%Dose
490 mg
Target
100–500 mg
Form
Budget
L-Tyrosine
50%Dose
250 mg
Target
500–2000 mg
Form
—
Other Ingredients (7)
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.
MaltodextrinBinder
Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Natural Color (unspecified)Colorant
Umbrella declaration for a colorant from a natural source (fruit, vegetable, or plant extract) that the label does not name specifically
Sodium CitrateBuffer
Sodium salt of citric acid used for pH control, tartness, and chelation in gummies
Fatty AcidsCarrier
Fatty acids derived from vegetable triglycerides, used as lipid carriers in enhanced-absorption vitamin formulations
Natural Orange FlavorFlavor
A natural flavoring derived from orange to mask supplement taste
How to Take It
Best taken in the morning
The Tyrosine in it is what pulls this toward the morning. Take it with food — the choline in it is what makes this kind of product feel nauseating on an empty stomach.
With food
Arginine 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.
Keep it away from protein-heavy meals
On the label
Mix 20g (approx. 2 scoops) with 300-400ml of water and consume 30 minutes before your workout. Consume once daily. Powder settles over time, we recommend weighing for the most accurate measure.
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.