BioStacks
Every active here is dosed below the amount studied to work. See how each one compares in the breakdown below.
Ingredients (2)
L-Arginine
25%Dose
500 mg
Target
2000–6000 mg
Form
Premium
L-Citrulline
17%Dose
500 mg
Target
3000–6000 mg
Form
—
Other Ingredients (13)
MonoglyceridesEmulsifier
Glycerol monoesters of fatty acids used as emulsifiers and processing lubricants
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Oleic AcidEmollient
A monounsaturated fatty acid used as an emollient and penetration aid
Polyethylene Glycol (Coating)Coating
A polyether polymer used as a tablet coating and plasticizer
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
Carnauba WaxCoating
Hard plant wax from the carnauba palm used to glaze gummies and tablets
EthylcelluloseCoating
A cellulose-derived polymer used for film coating and binding.
How to Take It
Take it anytime
Take between meals — food blunts the rise in plasma arginine.
On an empty stomach
On the label
As a dietary supplement, take one to three caplets daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$39.99
Pricier than 91% of 35 citrulline 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.