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Nitric Oxide Supplement, Stimulant-Free for Muscle Pumps & Circulation - 800mg L-Citrulline + L-Arginine Per Serving - 60 Vegan Capsules, 30 Servings

Supplement Facts

Serving Size: 2 Capsules
Servings Per Container: 30

Amount Per Serving% Daily Value
L-Citrulline DL-Malate400 mg†
L-Arginine Hydrochloride350 mg†
L-Arginine Alpha-Ketoglutarate50 mg†

† Daily Value not established.

Other ingredients: Cellulose (vegetable capsule), brown rice flour.

All / Nitric Oxide Supplement, Stimulant-Free

Nitric Oxide Supplement, Stimulant-Free

96 Reviews
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Stimulant-free nitric oxide formula with L-citrulline DL-malate and two forms of L-arginine, made to support your muscle pumps and healthy circulation.*

View Supplement Facts
  • No Caffeine or Stimulants
  • 2 Capsules Per Serving
  • 60 Capsules Per Bottle
Serving Size:
30 Servings
Frequency:

Quality You Can Check

We believe trust is earned through transparency. That's why every ingredient and its amount per serving is listed in our Supplement Facts, so you can feel confident in what you're taking. View the Supplement Facts.

60CAPSULES

Vitasy Nitric Oxide is a stimulant-free capsule formula with L-citrulline DL-malate, L-arginine hydrochloride and L-arginine alpha-ketoglutarate. Together they provide the amino acids your body uses in its own nitric oxide production, to support healthy blood flow and your muscle pumps during training.* Take it daily on its own, or alongside your usual pre-workout.

Why Use Nitric Oxide

Our stimulant-free nitric oxide formula is made to support blood flow, muscle pumps, healthy circulation and your training performance.*

Support Muscle Pumps & Performance*

Helps support blood flow to your muscles during exercise, for the pumps and sessions you're training for.*

Man training with a dumbbell in a gym

Support Healthy Circulation*

Ingredients chosen to support healthy blood flow and circulation as part of an active lifestyle.*

Man jogging outdoors on an overcast day

Citrulline + Two Forms of Arginine

400 mg of L-citrulline DL-malate plus 350 mg of L-arginine HCl and 50 mg of L-arginine AKG per serving, amino acids your body uses in its own nitric oxide production.*

Macro of fine powder particles in charcoal and warm orange tones

Stimulant-Free & Stackable

Made without caffeine or other stimulants, so it fits evening workouts and stacks with your usual pre-workout.

Man training on an air bike in a gym

Key Ingredients

Our formulas are made with clinically-studied ingredients at clearly labeled amounts, to support your health and performance.*

L-Citrulline DL-Malate

400 mg

An amino acid your body uses in its own nitric oxide production, here bound to malic acid.*

L-Citrulline DL-Malate400 mg

L-citrulline is an amino acid your body uses to make arginine and, from there, nitric oxide. In this formula it is bound to malic acid as L-citrulline DL-malate, at 400 mg per 2-capsule serving, to support healthy blood flow.*

L-Arginine Hydrochloride

350 mg

The main form of arginine in this formula, the amino acid your body uses directly to make nitric oxide.*

L-Arginine Hydrochloride350 mg

L-arginine is the amino acid your body uses directly to make nitric oxide. This formula provides 350 mg as L-arginine hydrochloride in every 2-capsule serving.*

L-Arginine Alpha-Ketoglutarate

50 mg

A second form of arginine, bound to alpha-ketoglutarate, that rounds out the formula.

L-Arginine Alpha-Ketoglutarate50 mg

L-arginine alpha-ketoglutarate (AAKG) pairs arginine with alpha-ketoglutarate. Each serving adds 50 mg of this second arginine form to the 350 mg of L-arginine hydrochloride.

Vitasy Nitric Oxide capsule bottles being filled on a production line

Every Ingredient Matters to Make Every Effort Count

Reviews

96 reviews
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Product reviews (96)
FiltersRating
JamesVerified10/18/2026

It really works

I feel like I can keep going longer in my workouts.*

Nora F.Verified10/17/2026

This product is Amazing

This product is amazing. I could feel a real difference in my workouts. I highly recommend it.

Giampiero10/16/2026

Prodotto valido

Anonymous10/15/2026

Nice

Carl10/14/2026

Fantastic

How To Use

1

Step 1 - Take Two Capsules

Take 2 capsules daily with 6–8 oz of water, or as directed by your healthcare professional.

2

Step 2 - Use Consistently

Take it daily as part of your routine to keep supporting your training.*

Frequently Asked Questions

No. This formula is made without caffeine or other stimulants, so it fits evening workouts and anyone who prefers to skip caffeine.

This formula is intended for healthy adults. If you take medication (including blood pressure medication, nitrates or PDE5 inhibitors), are pregnant or nursing, or have a medical condition, talk to your doctor before using a nitric oxide supplement.

Most people tolerate it well. As with any supplement that relates to blood flow, some people may notice mild headaches or lightheadedness. Stop use and talk to your doctor if you have any concerns, a medical condition or take medication.

It provides amino acids your body uses in its own nitric oxide production, which plays a role in blood flow. Many people take it to support their pumps, endurance and workout performance.* Individual experiences vary.

Yes, it is made for daily use and contains no stimulants. Follow the label, and speak with your doctor first if you have a medical condition or take medication.

Yes. The formula is suitable for healthy adult women and men who want to support their circulation, exercise performance and muscle pumps.* Follow the label and consult your doctor if you have questions.

For healthy adults only. Do not exceed the recommended dose. Consult your physician before use if you are pregnant or nursing, have a medical condition, take blood pressure medication, nitrates or PDE5 inhibitors, or have surgery planned. Keep out of reach of children. Store in a cool, dry place. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.