CircO2 by Advanced Bionutritionals is an innovative dietary supplement designed to naturally support your body's nitric oxide production — vital for cardiovascular health, energy, stamina, and overall vitality.
Order CircO2 Today
CircO2 is a nitric oxide boosting supplement offered as dissolvable lozenges. It supports healthy circulation, energy, stamina, cognitive function, and overall cardiovascular health by enhancing natural nitric oxide levels, which decline with age. The sublingual delivery allows fast absorption and activation in the mouth, leveraging bacteria for optimal nitric oxide production.
CircO2 works by supplying precursors and boosters of nitric oxide production, such as L-citrulline and beetroot extract, which are converted by the body through enzymatic pathways into nitric oxide. Nitric oxide signals endothelial cells to relax blood vessels, promoting vasodilation, improved blood flow, and nutrient delivery. The supplement's sublingual lozenge delivery enables faster absorption and interaction with oral bacteria to kickstart nitric oxide synthesis. Additional antioxidants like vitamin C and hawthorn berry protect nitric oxide from oxidative damage and support cardiovascular function. This improved circulation can enhance energy, mental clarity, sexual function, joint health, and blood pressure.
Healthy vasodilation contributes to regulated blood pressure and improved vascular flexibility.
Enhanced oxygen and nutrient delivery fuels sustained endurance and vitality.
Improved circulation supports mental clarity, memory, and focus throughout the day.
Increased blood flow supports enhanced sexual vitality and performance levels.
Enhanced circulation can reduce inflammation and support joint mobility.
Vascular relaxation supports restorative and restful sleep patterns.
"I noticed a big difference in the way I felt after using this amazing product. I am 81 years old. I now feel as good as I did in my 60’s. Within a week I was able to increase my walks from 1 to 5 kilometers a day. I never run out of energy and no longer require midday rests."
"My husband and I are in our 80s and 90s and after trying many products, CircO2 really worked! Our energy surged beyond measure, and we sleep better and wake up fresh every day."
"I bought CircO2 about a month ago. It took about 2 weeks of taking it and I started noticing that I had more energy. I will keep taking this."
"My friend recommended this and I feel more energy at both the gym and at home."
"From the first day, I had more energy and my mind seemed to focus better. The increase of nitric oxide is great. I feel better in all ways."
CircO2 is backed by a 90-day money-back satisfaction guarantee. If you are dissatisfied for any reason within 90 days of purchase, you can return your product—even if the box is empty—and receive a full refund. You are only responsible for return shipping fees. This risk-free policy highlights our confidence in CircO2's effectiveness to support your health and vitality.
Natural, stimulant-free energy boost
Supports healthy blood pressure and cardiovascular health
Promotes enhanced endurance and stamina
Improves circulation and oxygen delivery to tissues
Supports cognitive function and mental clarity
Relieves joint discomfort and improves mobility
Unique fast-dissolving lozenge formulation for optimal absorption
Antioxidant support protects nitric oxide function for cardiovascular health
Backed by a risk-free 90-day money-back guarantee