supplements · supplement review
CircO2
CircO2 is an Advanced Bionutritionals dietary supplement designed to dissolve in the mouth rather than be swallowed like a standard capsule. The label verifies vitamin C, vitamin B12, magnesium, and a proprietary 420 mg nitric oxide blend containing beet root powder, hawthorn berry extract, L-citrulline, and sodium nitrite per tablet. Vitasor positions it as a circulation and healthy-aging supplement comparison, not as treatment for high or low blood pressure, cardiovascular disease, erectile dysfunction, cognitive symptoms, or fatigue.
At a glance
Decision snapshot
$49.95 for 1 box; multi-box savings available
A fast-dissolving oral tablet positioned for nitric-oxide support, with vitamin C, methylcobalamin B12, magnesium, and a 420 mg beet root, hawthorn, L-citrulline, and sodium nitrite blend.
- Key ingredients
- Vitamin C, Vitamin B12
- Form
- unknown
- Quality testing
- Not verified
Who it may suit
Potential fit
- Adults comparing beet, L-citrulline, and nitrate-based nitric-oxide supplements
- Users who prefer a tablet that dissolves in the mouth
- Healthy-aging readers researching circulation-support routines
- People whose clinician or pharmacist has confirmed compatibility with their blood pressure and medicines
May not fit
- People with low blood pressure unless a physician approves use
- People using nitrates, blood-pressure medication, PDE5 inhibitors, anticoagulants, or other relevant products without professional review
- Anyone seeking treatment for hypertension, cardiovascular disease, erectile dysfunction, cognitive symptoms, or persistent fatigue
- Pregnant or breastfeeding people without clinician guidance
Research context
Evidence and safety
Evidence level: mixed. A fast-dissolving oral tablet positioned for nitric-oxide support, with vitamin C, methylcobalamin B12, magnesium, and a 420 mg beet root, hawthorn, L-citrulline, and sodium nitrite blend.
The vendor specifically advises people with low blood pressure to consult a physician before use.
- The vendor specifically advises people with low blood pressure to consult a physician before use.
- Because the blend includes nitrate and circulation-related ingredients, review compatibility with nitrates, blood-pressure medicines, PDE5 inhibitors, anticoagulants, and cardiovascular conditions.
- Chest pain, fainting, severe shortness of breath, or acute neurological symptoms require urgent medical care.
Before you leave
Access and disclosures
90-day down-to-the-last-lozenge satisfaction guarantee; customer pays return shipping
The archived offer shows free shipping for the 3- and 6-box options; it does not state the 1-box shipping charge.
Affiliate materials list the USA, Australia, New Zealand, Canada, Ireland, Belgium, France, Brazil, England/UK, Spain, Italy, and Puerto Rico as eligible shipping destinations.
The guarantee requires the customer to pay return shipping.
Some links may be affiliate links. Vitasor may earn a commission at no extra cost to you. Product availability and price can change.
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