circO2™ by Advanced Bionutritionals is an innovative quick-dissolve lozenge developed by Dr. Frank Shallenberger, MD. It instantly generates bio-active nitric oxide in the mouth to dilate stiff arteries, elevate oxygen delivery to organs, and supercharge all-day stamina.
WHY CIRCO2 REVOLUTIONIZES SENIOR CIRCULATION
By age 50, your body produces only half the nitric oxide it did in your 20s. Without nitric oxide, blood vessels stiffen like old garden hoses. circO2 replenishes it instantly.
Relaxes the endothelial smooth muscle lining of major arteries, allowing blood to flow without resistance and supporting normal, healthy blood pressure readings.
Delivers fresh oxygen directly to mitochondria throughout your body. Walk upstairs, work in the yard, and enjoy active hobbies without breathless fatigue.
Forces oxygen-rich blood into peripheral micro-capillaries at your extremities, ending the discomfort of chronically icy fingers and numb, tingly toes.
RAPID NITRIC OXIDE REGENERATION
Dissolves under the tongue in seconds to bypass digestive degradation.
Sustained NO Production
Converts cleanly into L-arginine in the kidneys, bypassing hepatic clearance to supply sustained nitric oxide for hours.
Natural Nitrate Donor
Concentrated botanical nitrate source that utilizes the salivary microbiome pathway to generate instant NO gas.
NO Recycler
Potent antioxidant that shields nitric oxide molecules from rapid oxidation, extending their biological half-life.
Methylcobalamin
Essential for red blood cell synthesis, nerve transmission, and maintaining smooth arterial endothelial signaling.
Arterial Calmer
Relaxes coronary and peripheral blood vessel walls, helping sustain normal rhythmic heart contraction.
Instant Catalyst
Micro-calibrated inorganic nitrite that triggers immediate nitric oxide gas release upon contact with saliva.
Great Taste
Refreshing berry-citrus taste that makes taking your daily circulation tablet an enjoyable morning ritual.
Sublingual Tabs
Dissolves on the tongue in under 3 minutes for direct transmucosal absorption into the bloodstream.
CHOOSE YOUR CIRCO2 BUNDLE
Take advantage of multi-box discounts. All orders are covered by Dr. Shallenberger’s unconditional 90-day money-back guarantee.
30-Day Supply (30 Quick-Dissolve Tabs)
Total: $49.95 + Standard Shipping
180-Day Supply (180 Lozenges)
Total: $249.00 • FREE U.S. SHIPPING
90-Day Supply (90 Lozenges)
Total: $134.85 • FREE U.S. SHIPPING
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Every box of circO2 is backed by Advanced Bionutritionals' industry-famous 90-Day 100% Money-Back Guarantee. Take every single lozenge down to the very last tablet. If you do not feel a tangible surge of natural energy, warmer hands and feet, sharper memory, and healthy blood pressure numbers, simply send back the empty boxes for a 100% full refund with zero hassle.
EXPERIENCES FROM REAL CIRCO2 USERS
Read how seniors and active adults across America have recharged their cardiovascular stamina.
"I used to get out of breath just walking up my driveway. Since starting circO2, my stamina has skyrocketed. I played 18 holes of golf last Saturday without feeling exhausted. My doctor was genuinely impressed with my numbers."
"The lozenge tastes pleasant and works fast. My cold fingers and toes are finally warm again, and my afternoon mental sharpness is back to what it was in my 40s. A genuine lifesaver."
"The included test strips proved it works within 20 minutes! My saliva test went from depleted white to deep glowing pink. I take it every single morning without fail."
FREQUENTLY ASKED QUESTIONS
As you age, your body loses the enzyme (eNOS) required to convert L-arginine into nitric oxide. circO2 uses a dual-pathway oral delivery system with bio-active inorganic nitrates and L-citrulline that bypasses this enzyme roadblock completely.
Allow one (1) lozenge to dissolve completely in your mouth or chew it slowly once daily, preferably in the morning. Do not swallow the tablet whole.
Cardiovascular endothelium requires continuous nitric oxide saturation to maintain long-term flexibility. The 6-box package offers the highest savings ($41.50/box vs $49.95), Free Nitric Oxide Test Strips, and Free U.S. Shipping.
Advanced Bionutritionals allows you to use all 6 boxes down to the last tablet. If you aren't completely satisfied, return the empty boxes within 90 days for a prompt 100% refund.
Claim your direct manufacturer discount on circO2 today. Backed by Dr. Shallenberger’s ironclad 90-day empty box guarantee.
