Caroline K.
After using a testing strip for Nitric…
After using a testing strip for Nitric Oxide levels, I bought this product to see if my husbands levels could be improved over a 3 month period of taking x1 tablet daily. The CircO2 tablets have increased my husbands nitric oxide levels up from zero to depleted which is great to see. He will now increase to x2 daily to see if this further improves his levels.




