Nitric Oxide Supplement with Citrulline & Arginine

Nitric Oxide is a nitric oxide supplement formulated with L-citrulline and L-arginine to support healthy circulation, exercise performance, and post-workout recovery. This convenient capsule formula fits easily into a daily fitness or wellness routine.

What is Nitric Oxide?

Nitric Oxide is an amino acid-based supplement designed to support the body’s natural nitric oxide production. Its formula combines L-Citrulline DL-Malate, L-Arginine Hydrochloride, and L-Arginine Alpha-Ketoglutarate to promote normal blood flow, nutrient delivery, and muscle function.

For shoppers comparing ingredient approaches, our article on beetroot vs citrulline for nitric oxide support offers helpful context, and you can also explore our Vitamins & Supplements by Zoiful page for more wellness options.

Key Benefits

• Supports healthy circulation and normal blood flow
• Promotes nutrient delivery to muscles during training
• Helps support exercise performance and endurance
• Supports muscle function as part of an active lifestyle
• May help maintain post-workout recovery support in a daily routine
• Stim-free formula for shoppers seeking pump support without caffeine

Who Should Consider Nitric Oxide

This supplement may be a good fit for adults who want circulation support, endurance support, or a non-stim addition to their training stack. It is also suitable for those looking for a capsule-based nitric oxide supplement to complement workouts or general wellness goals.

Suggested Use

Suggested Use: As a dietary supplement adults take two (2) capsules daily. For best results, take with 6-8 oz (177-237ml) of water or as directed by healthcare professional.

Ingredients & Quality

Ingredients: L-Citrulline DL-Malate (400 mg), L-Arginine Hydrochloride (350 mg), L-Arginine Alpha-Ketoglutarate (50 mg), Vegetable Cellulose (Capsule), Brown Rice Flour.

Manufactured in the USA.

• Gluten-free
• Vegetarian
• Allergen-free
• Non-GMO
• Vegan friendly

Warning: Do not exceed recommended dose. Pregnant or nursing mothers, children under the age of 18, and individuals with known medical conditions should consult a physician before using this or any dietary supplement. KEEP OUT OF THE REACH OF CHILDREN. DO NOT USE IF SAFETY SEAL IS DAMAGED OR MISSING. STORE IN A COOL, DRY PLACE.

Frequently Asked Questions

What is a nitric oxide supplement used for?

A nitric oxide supplement is commonly used to support healthy circulation, normal blood flow, and exercise performance. This formula also supports muscle function and fits well into a workout or wellness routine.

Is L-citrulline better than L-arginine for nitric oxide support?

Shoppers often compare these two ingredients because both are associated with nitric oxide production. This product includes both L-Citrulline DL-Malate and L-Arginine forms, offering a combined approach for circulation and performance support.

When should I take Nitric Oxide capsules?

The label says adults should take two capsules daily with 6-8 oz of water or as directed by a healthcare professional. If you are building a workout routine, consistency may matter more than overcomplicating timing.

Is this a stim-free pump supplement?

Based on the listed ingredients, this formula does not include caffeine. That makes it a good option for shoppers looking for non-stim nitric oxide support in capsule form.

Can nitric oxide supplements support recovery after exercise?

This product is positioned to support post-workout recovery as part of an active lifestyle. Its amino acid ingredients are included to support circulation, muscle function, and exercise performance.

Who should consider using Nitric Oxide?

This supplement is intended for adults who want support for circulation, endurance, or workout performance. It may also appeal to people who prefer a capsule over a powder and want a simple daily routine.

How should I store this supplement?

Store it in a cool, dry place. The label also says not to use the product if the safety seal is damaged or missing, and to keep it out of the reach of children.

Learn more on our blog

• How to Choose the Best Nitric Oxide Supplement in 2026
• L-Citrulline vs L-Arginine: Which Makes More Sense for Nitric Oxide Support?
• Can a Non-Stim Pump Supplement Fit Your Pre- and Post-Workout Routine?
• Nitric Oxide for Circulation Support and Recovery: What Shoppers Should Know

Explore the full Nitric Oxide Support Guide for more articles.

Product data sheet

Download the Nitric Oxide Supplement with Citrulline & Arginine data sheet (PDF) — a printable one-page summary with the facts, benefits, suggested use and verified research.