BioStacks
Best for
Ingredients (5)
Niacin
100%Dose
25 mg
Target
25–500 mg
Form
Premium
Acetyl-L-Carnitine Arginate DiHydrochloride
60%Dose
300 mg
Target
500–2000 mg
Form
—
Glycine Propionyl-L-Carnitine HCl
60%Dose
300 mg
Target
500–2000 mg
Form
—
L-Arginine HCl
20%Dose
400 mg
Target
2000–6000 mg
Form
—
L-Citrulline
13%Dose
400 mg
Target
3000–6000 mg
Form
—
Other Ingredients (4)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Calcium SilicateAnti-caking
Inorganic compound used as an anti-caking and flow agent in powdered supplements
HypromelloseCapsule
Plant-derived capsule material from cellulose
How to Take It
Take it anytime
This is the flushing form. Take it with food to blunt the flush — it usually fades after a couple of weeks of consistent use.
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.
On the label
Take 2 capsules daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$18.31
Cheaper than 69% of 239 energy 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. 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.