This **L-Citrulline** targets blood flow and exercise performance, but at 750mg per capsule it lands well short of the dose that actually works. Citrulline is the more effective nitric-oxide precursor than arginine — it bypasses first-pass metabolism and raises blood arginine more reliably — so for circulation, blood-pressure support, and exercise fatigue, the molecule is the right pick.
The catch is the dose. Blood-flow and blood-pressure trials use roughly 3,000–6,000mg of L-citrulline, so one 750mg capsule gives about a quarter of the low end. To reach an effective dose you'd need 4 to 8 capsules a day — the label's 1–2 capsules, once or twice daily, tops out at 3,000mg, only just hitting the studied minimum. Good molecule, underdosed per capsule — a powder is far more practical at this intake.
BioStacks
Other Ingredients (3)
Magnesium OxideMineral Source
An inorganic magnesium salt used as a magnesium source or bulking mineral.
HypromelloseCapsule
Plant-derived capsule material from cellulose
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
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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.