BioStacks
Pure Encapsulations
Nitric Oxide Support
Powder · 1 Scoop (Approximately 5.4 Grams) · 30 servings · $1.58/serving
Best for
Ingredients (3)
L-Arginine
100%Dose
2050 mg
Target
2000–6000 mg
Form
—
Vitamin C
80%Dose
200 mg
Target
250–2000 mg
Form
Budget
Citrulline
12%Dose
715 mg
Target
6000–8000 mg
Form
Standard
Other Ingredients (4)
XylitolSweetener
A FODMAP sugar alcohol that can cause GI distress (bloating, gas, diarrhea) at moderate doses (>10-20g/day), though supplement amounts are typically small. Extremely toxic to dogs — households with pets should store securely.
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.
Monk Fruit ExtractSweetener
Zero-calorie natural sweetener derived from the monk fruit (Siraitia grosvenorii)
Stevia ExtractSweetener
Zero-calorie natural sweetener extracted from the leaves of Stevia rebaudiana
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 1 scoop daily, mixed with water, 20 minutes before exercise.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$47.40
Pricier than 91% of 544 vitamin C 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.