CircO2 Review 2025: Can It Boost Nitric Oxide Levels Naturally?

Overview

Your cardiovascular health cannot be understated. It affects almost every other aspect of your mental and physical health. CircO2 is a supplement that was formulated to keep your heart and entire cardiovascular system healthy.

The formula for CircO2 features ingredients that can improve your blood pressure and prevent platelet buildup in your arteries. If you have had heart issues in the past, CircO2 may help to reduce your risk of complications.

This is a supplement that stands out amongst other heart supplements because of its comprehensive formula that works at multiple levels of the cardiovascular system – not just the heart.

CircO2 – Health Insiders Images

What Is CircO2?

CircO2 is a dietary supplement that comes in lozenge form so it’s convenient to take when it’s most convenient for you. The makers of this supplement state that it will support healthy blood pressure.

They also claim that CircO2 will increase blood flow to the extremities of your body including your brain which may benefit cognitive function. It may also work to boost energy and endurance.

Best of all CircO2 features a blend of natural ingredients that work with the normal processes of your cardiovascular system. Most people use it to improve their heart and arterial health.

CircO2 – Quick Facts & Specs

Buy on Official Website

*All the prices listed here are as they appear on their websites and are subject to change.

CircO2 is a great choice for people at risk of cardiovascular complications.

• Form:Lozenge
• Type:Heart support supplement
• Benefit:Improved blood pressure, more energy, increases blood flow
• Brand:Advanced Bionutritionals
• Price:$49.95*
• Active Ingredients: Beet root, Vitamin C, Hawthorn berry
• Number of Serving Per each Container:30

Pros and Cons of CircO2

• 100% money-back guarantee
• Supports healthy nitric oxide levels
• Brain and body benefits
• Good for men and women
• Suitable for adult users of all ages
• Natural formula

• It may sell out fast due to high demand
• Not all orders are eligible for free shipping

Who is the Manufacturer of CircO2?

CircO2 is made by a company called Advanced Bionutritionals. The company employs Dr. Shallenberger who has over 44 years of experience in medical practice all over the country.

Together, they have come up with many breakthrough supplemental formulas that utilize the most reliable and up-to-date clinical study data. Advanced Bionutritionals is also a GMP certified manufacturer.

How Does CircO2 Work?

Perhaps the most important function of this supplement is as a nitric oxide booster. Nitric oxide is a key element to heart health because it helps widen the blood vessels so that they carry more oxygen throughout the body.

Nitric oxide has also been known to reduce high blood pressure. So CircO2 is intended to work by improving the way your blood flows throughout your body and the oxygen capacity of your blood cells.

Apart from that, CircO2 is likely to work to improve your cognitive functions as well. That’s because your brain requires oxygen from your blood cells to function at a high level.

CircO2 Ingredients

The ingredients in CircO2 are natural and generally well-tolerated. They include:

Beet Root – Beet root extract contains a significant amount of nitrates which help improve blood pressure and general cardiovascular function. Medical experts have reported that:

Some studies show beetroot juice supplementation may lower blood pressure and increase blood flow.^[1]

Vitamin C – Vitamin C is an important antioxidant for heart health. Some studies have suggested that it helps keep arteries pliable and well-functioning. Other studies say that vitamin C greatly reduces one’s risk of developing dangerous cardiovascular issues.^[2]

Hawthorn Berry – Hawthorn berry extract has been studied for its purported effects on the heart. Some of these studies concluded that hawthorn berry may have cardioprotective effects and may reduce the user’s risk of developing atherosclerosis.^[3]

L-Citrulline– L-citrulline is an amino acid that has been observed in some studies to improve nitric oxide levels in the blood. This effect has also resulted in improved energy output and blood pressure.^[4]

Vitamin B12 – Vitamin B12 may play a role in reducing one’s risk of developing serious cardiovascular issues. It may also be important for the proliferation of important immune cells.^[5]

Benefits of CircO2

Healthy Blood Pressure – The ingredients in CircO2 may help increase nitric oxide levels in the blood. This may help increase blood pressure and keep it within the normal range.

Boosts Energy and Endurance – Increased blood flow and oxygen uptake in the muscles have been associated with improved athletic performance. CircO2 may work to improve your stamina.

Sharper Memory & Focus – Your brain needs oxygen to perform at a high level. Since CircO2 can help the blood vessels transport more oxygen to the brain, it may also improve working memory and focus.

Healthy Circulation – Because the formula for CircO2 can help keep your blood circulation normal, it may have a beneficial effect on erectile function and joint function.

Reduced Risk of Cardiac Issues – CircO2 may also reduce your risk of developing serious heart issues by keeping your blood pressure normal and helping to prevent plaque buildup in the arteries.

CircO2 Customer Reviews

The reviews for this supplement have been positive so far and has a favorable star-rating on retail sites where it’s sold. Here are some examples of CircO2 reviews:-

I like the integrity of this product. It has been a benefit to me so far, so I am ordering again.

because it helps relax and widen blood vessels, NO2 is crucial to your health! this is the most important supplement i take each day.

This was great for a short period of long work days and nights. Alert and calm without irritability or side effects

Does CircO2 Cause Side Effects?

It does not appear that this supplement causes side effects. In fact, there have been reviews that specifically state that it does not cause irritability or side effects. One user from Southern California said that:

This was great for a short period of long work days and nights. Alert and calm without irritability or side effects.

Is CircO2 Safe?

CircO2 is likely to be safe for most adult users because it contains natural ingredients and is devoid of toxins and chemical additives. Furthermore, it is made in accordance with GMP guidelines.

If you are allergic to any of the ingredients in CircO2 or if you have pre-existing medical conditions, it would be best to talk to your doctor before taking CircO2.

How To Use CircO2?

The instructions state that the user should take 1-2 lozenges of CircO2 per day. Simply place it on your tongue and let it dissolve.

CircO2: Packages, Deals, Prices

There are three purchasing options available on the CircO2 website. They are:

• 1 box – $49.95
• 3 boxes – $44.95 each – $134.85 total w/free shipping
• 6 boxes – $41.50 each – $249 total w/free shipping

Where To Buy CircO2?

Consumers can buy CircO2 on the official Advanced Bionutritionals website as well as third-party retail sites.

Final Verdict

CircO2 is a supplement that boasts a complete formula for heart protection. It can help lower your blood pressure and keep it in the healthy range as well as improve arterial function.

Taking CircO2 on a long-term basis may lower your overall risk of developing problematic heart issues. This supplement may also provide you with more physical and mental energy.

This is a worthwhile product that offers important health issues which is why we encourage you to check it out.

Frequently Asked Questions