CircO2 is a science-backed oxygen booster that supports the body’s natural circulation processes for overall wellness and vitality.
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What is CircO2?
CircO2 is an oxygen booster and circulation support system developed by Dr. Frank Shallenberger under the brand Advanced Bionutritionals.
This scientifically advanced formula helps the body naturally boost nitric oxide levels, which may rise up to 200% higher in just 20 minutes. It focuses on improving oxygen delivery throughout the body and supporting healthy blood flow.
Many people turn to CircO2 to maintain energy, stamina, and focus while supporting a strong heart and balanced blood pressure.
It is used by those who want to enhance nitric oxide absorption and promote better mobility, vitality, and sleep quality.
CircO2’s system works to help users feel more energetic, youthful, and active through improved circulation and oxygen utilization.
How Does CircO2 Work?
CircO2 works by helping the body restore its natural ability to produce nitric oxide, a key molecule that supports circulation and oxygen flow. When dissolved in the mouth, CircO2 activates a unique reaction that releases nitric oxide directly into the bloodstream.
This rapid release helps expand blood vessels, improving oxygen delivery to muscles, organs, and the brain. The process enhances blood flow, which supports energy levels and overall vitality throughout the day.
By boosting nitric oxide, CircO2 helps the body use oxygen more efficiently, which may improve stamina, focus, and physical performance.
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CircO2 Ingredients – What’s Inside?
CircO2 combines natural, science-backed nutrients that help the body restore healthy nitric oxide levels and improve energy, stamina, and circulation. Each ingredient plays a specific role in supporting oxygen flow, heart health, and overall vitality.
Beet Root Powder – Olympic-Level Stamina & Power
Beet Root Powder is a rich source of natural nitrates that convert into nitric oxide inside the body. This process widens blood vessels, helping oxygen travel more efficiently to muscles and organs. The result is increased stamina, strength, and endurance. Beet root is widely used by athletes for its ability to enhance physical performance and reduce fatigue during intense activity.
Hawthorn Berry – The Absorption Booster
Hawthorn Berry supports the heart and strengthens blood vessel walls. Its powerful plant compounds help improve circulatory efficiency, ensuring that nutrients and oxygen reach tissues faster. In CircO2, Hawthorn Berry acts as an absorption enhancer, allowing other nutrients to work more effectively. It helps stabilize blood pressure levels and maintain a steady flow of oxygen-rich blood.
L-Citrulline – Superior to L-Arginine
L-Citrulline is a key amino acid that the body converts into L-Arginine, which then boosts nitric oxide production. Research shows that L-Citrulline stays active longer in the bloodstream than L-Arginine, making it a more effective nitric oxide precursor. It supports endurance, recovery, and blood vessel relaxation, leading to improved energy and performance.
Vitamin B12 – Oxygen Utilization Support
Vitamin B12 plays an essential role in red blood cell formation and oxygen transport. It helps the body convert food into energy and maintain neurological health. In CircO2, it ensures cells receive the oxygen they need for optimal function and vitality.
Vitamin C – Nitric Oxide Protection
Vitamin C protects nitric oxide molecules from oxidative stress. By preventing their breakdown, it allows nitric oxide to stay active longer in the bloodstream. This antioxidant defense helps sustain circulatory health and supports stronger immune function.
Magnesium – Circulation and Energy Balance
Magnesium supports over 300 biochemical reactions in the body, including those linked to muscle function and energy production. It helps maintain healthy blood pressure, supports vascular relaxation, and keeps nitric oxide levels stable for consistent circulation.
Benefits
CircO2 supports the body’s ability to produce nitric oxide, which plays a vital role in circulation, energy, and overall vitality. Its unique oxygen-boosting system offers several key benefits for daily performance and wellness.
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Improved Energy and Stamina – Helps increase oxygen flow to muscles and cells, allowing the body to stay active and energized throughout the day.
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Healthy Blood Pressure Support – Encourages smoother blood flow and balanced pressure by keeping blood vessels flexible and strong.
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Enhanced Circulation – Boosts nitric oxide levels to improve oxygen delivery to vital organs, supporting endurance and recovery.
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Sharper Focus and Memory – Promotes better brain oxygenation, improving mental clarity and alertness.
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Improved Intimacy and Performance – Supports natural blood flow, helping enhance physical responsiveness and vitality.
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Better Sleep and Relaxation – Encourages oxygen balance that promotes restful sleep and a calm, refreshed feeling each morning.
How to Use?
Each CircO2 box contains 30 quick-dissolve tablets made for easy daily use. Take one lozenge per day for best results.
Place the tablet under your tongue and allow it to fully dissolve—do not chew or swallow it whole. This method helps nitric oxide activate directly in your mouth for faster absorption and better oxygen delivery.
Use it at the same time each day to maintain consistent circulation and energy support throughout your routine.
Check the Availability of CircO2 on Its Official Website
Is CircO2 Safe?
Yes. CircO2 is considered safe for daily use. Its ingredients are naturally sourced and have a long history of safety in supporting nitric oxide production and circulation.
Each component is selected for purity and tested for quality to ensure reliable results. The formula contains nutrients that the body already recognizes and uses for energy and oxygen balance.
Most users tolerate CircO2 well when taken as directed, making it a safe choice for ongoing circulation and vitality support.
CircO2 Reviews – What Are Customers Saying?
CircO2 holds an overall rating of 3.8/5, based on 1,566+ verified customer reviews. Most users report noticeable improvements in energy, stamina, and focus, while a few mention slower results.
Positive Reviews:
⭐️⭐️⭐️⭐️⭐️ James R. – “More energy within days!”
James shared that his energy levels and alertness improved significantly after using CircO2 for two weeks.
⭐️⭐️⭐️⭐️⭐️ Linda M. – “Better circulation and focus.”
Linda noticed warmer hands and feet, improved concentration, and steady energy throughout her day.
⭐️⭐️⭐️⭐️⭐️ Robert K. – “Blood pressure improved naturally.”
Robert reported balanced blood pressure readings and an overall sense of calm and vitality.
⭐️⭐️⭐️⭐️⭐️ Susan P. – “Felt younger and more active.”
Susan said she felt more motivated, active, and mentally sharp after adding CircO2 to her routine.
Negative Reviews:
⭐️⭐️⭐️ Karen T. – “Took longer to feel results.”
Karen mentioned that it took nearly a month before she noticed any real energy changes.
⭐️⭐️⭐️ David H. – “No major difference yet.”
David stated that while he appreciated the clean ingredients, he hasn’t seen strong results so far.
Overall, most users describe CircO2 as helpful for energy and circulation, with gradual but steady improvements over time.
CircO2 Pricing Details
CircO2 is available in three package options for flexible use and savings.
🔹 1 Box (30-day supply) – $49.95 + small shipping fee
🔹 3 Boxes (90-day supply) – $134.85 ($44.95 per box) + Free Shipping
🔹 6 Boxes (180-day supply) – $249 ($41.50 per box) + Free Shipping
Buying multiple boxes offers better value and long-term nitric oxide support. Each box provides 30 quick-dissolve tablets, ideal for consistent daily use.
Check the Availability of CircO2 on Its Official Website
Money Back Guarantee & Shipping
Every CircO2 order is protected by a 90-day, 100% risk-free money-back guarantee. If you are not completely satisfied, you can request a full refund within 90 days—no questions asked.
Customers who order 3 or 6 boxes receive free shipping, making it an affordable and convenient option for ongoing nitric oxide support.
Where to Buy?
You can purchase CircO2 only through the official website. Buying directly ensures you receive a genuine product with verified quality, backed by the 90-day risk-free guarantee.
Ordering from the official site also provides access to special pricing, bundle discounts, and free shipping on select packages. Avoid third-party sellers to ensure safety, authenticity, and full customer support for every order.
How to Use?
CircO2 comes with 30 quick-dissolve tablets for simple daily use.
Take one lozenge each day and place it under your tongue. Allow it to dissolve slowly and completely. Do not chew or swallow the tablet whole.
This sublingual method helps your body absorb the nutrients faster and more effectively. By following this routine, nitric oxide levels rise naturally, supporting circulation, energy, focus, and overall vitality.
Conclusion
CircO2 offers a natural way to support nitric oxide production, circulation, and energy levels. Its combination of nutrients like beet root, L-Citrulline, and hawthorn berry works to improve oxygen delivery, stamina, and overall vitality.
Users report benefits such as enhanced focus, better blood flow, and increased physical performance. The formula is safe, backed by a 90-day money-back guarantee, and available exclusively through the official website.
Choosing CircO2 allows individuals to support heart health, mobility, and daily energy in a simple, reliable way. Its convenient quick-dissolve lozenges make consistent use easy, helping users feel more active, alert, and youthful.
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Frequently Asked Questions
1. What is CircO2?
CircO2 is an oxygen booster and circulation support system designed to naturally increase nitric oxide levels. It helps improve energy, stamina, circulation, and overall vitality using a blend of scientifically supported nutrients.
2. How does CircO2 work?
CircO2 works by boosting nitric oxide production, which expands blood vessels and improves oxygen flow throughout the body. This supports better energy, focus, endurance, and circulation.
3. How do I use CircO2?
Take one quick-dissolve lozenge daily. Place it under your tongue and let it fully dissolve. Do not chew or swallow it whole. This method allows fast absorption for optimal results.
4. Is CircO2 safe?
Yes. CircO2 contains naturally sourced ingredients with a long history of safe use. Most users tolerate it well when used as directed.
5. Where can I buy CircO2?
CircO2 is available only through the official website. Buying directly ensures a genuine product, verified quality, and access to the 90-day money-back guarantee.
Click to Order Your Discounted CircO2 Now!