Pure Encapsulations

Nitric Oxide Ultra (capsules)

$80.00120 Capsules

Out of stock

The Promise

What it is core formula and forms

A capsule formula combining free-form l-citrulline with a cranberry/grape seed polyphenol blend and a fat-soluble vitamin C derivative.

Primary ingredients

Four vegetarian capsules deliver 2,000 mg l‑citrulline (free‑form), 765 mg CranLoad™ proprietary cranberry (Vaccinium macrocarpon) fruit and grape (Vitis vinifera) seed blend, plus 40 mg ascorbyl palmitate.

Distinctive blend

CranLoadâ„¢ is a trademarked cranberry and grape seed extract combination included for its concentrated proanthocyanidins and other polyphenols.

Dosage format

Vegetarian cellulose capsules provided in a 120‑capsule size for flexible 2–4 capsule daily dosing.

Quality note

Contains a fat‑soluble form of vitamin C (ascorbyl palmitate) and uses free‑form l‑citrulline for supplementation.

Why It Works

Why this mix matters ingredient roles and research support*

Key components are selected for their specific contributions to nitric oxide biology and vascular function.

01

Citrulline choice

Free‑form l‑citrulline is included at 2,000 mg per four capsules to increase plasma arginine more effectively than arginine itself.

02

Polyphenol contribution

The CranLoadâ„¢ cranberry and grape seed blend supplies proanthocyanidins and other polyphenols associated with vascular-supporting mechanisms.*

03

Flow‑mediated dilation evidence

CranLoad™ has been shown in trials to produce statistically significant support for healthy flow‑mediated dilation (FMD), with reported peak increases in brachial artery diameter.*

04

Vitamin C form

Ascorbyl palmitate provides a fat‑soluble form of vitamin C included at 40 mg to complement the blend's antioxidant profile.

Reviews

Customer Reviews

Your Journey

How to use it practical dosing and handling

Simple, capsule-based dosing with timing and serving guidance for daily use.

Serving

Daily amount

Take 2–4 capsules daily in divided doses.

Timing

When to take

Take capsules between meals as directed.

Preparation & format

Capsule convenience

Vegetarian cellulose capsules can be swallowed whole; no mixing or preparation required.

Storage & fit

Dietary compatibility

Comes as vegetarian capsules and fits plant‑based capsule preferences.

Product education

Suggested Use: 2-4 capsules daily, in divided doses, between meals.

Nitric Oxide Ultra (capsules) – *Supports nitric oxide production and healthy blood flow

Nitric Oxide Ultra (capsules) offers a blend of CranLoad™ and citrulline to support healthy blood flow by targeting nitric oxide production and flow-mediated dilation. The formula centers around CranLoad™, a novel fruit blend developed as part of an extensive research program with the Institute of Nutrition and Functional Foods (INAF) and Université Laval in Quebec, Canada. CranLoad™ delivers a unique cranberry and grape seed blend that has been the subject of several trials. Cranberries and grapes are particularly generous sources of proanthocyanidins and other polyphenols. In addition to being powerful antioxidants, these compounds offer specific vascular support mechanisms that are associated with enhanced endothelial function. Research indicates that CranLoad™ provides statistically significant support for healthy flow-mediated dilation (FMD), an effect similar to arginine administration. FMD reflects blood vessel dilation mediated by nitric oxide synthase (NOS), an enzyme that generates the endogenous vasodilator, nitric oxide. In one study, the peak increase in brachial artery diameter following CranLoad™ supplementation was 2.8% at 60 minutes. A similar physiological effect has been demonstrated with arginine. Citrulline is included to support nitric oxide production in the blood vessel endothelium and other tissues. Research indicates that citrulline increases plasma arginine in a dose dependent manner and to a greater degree than arginine supplementation.*

Nitric Oxide Ultra (capsules) offers a unique clinically researched blend of cranberry and grape seed extracts combined with citrulline to support blood flow and vascular health, including nitric oxide production, flow-mediation dilation, and endothelial function.*

CranLoadâ„¢ is a trademark used by Pure Encapsulations under license.

Supplement record

Review serving details and ingredients for this product.

Supplement Facts:
Suggested Use: 2-4 capsules daily, in divided doses, between meals.
four vegetarian capsules contain:
Ingredients AMT %DV
l-citrulline (free-form) 2,000 mg -
CranLoadâ„¢ proprietary blend providing cranberry (vaccinium macrocarpon) extract (fruit) and grape (vitis vinifera) extract (seed) 765 m -
ascorbyl palmitate (fat-soluble vitamin C) 40 mg -
Other Ingredients: vegetarian capsule (cellulose, water)
(-) There is no %DV or the manufacturer has not provided this data.