ACID√Check- is a mineral based crystalline composition that has localized and systemic alkalizing effects in the body. 100% Alkaline Mineral Supplement.The four active ingredients in ACID √ Check withAlka-Myte® are alkaline minerals found in nature. Manyfoods today are depleted in these important alkalinemineral food ingredients. ACID √ Check helps reduceexcess acid in the blood, cells and tissue andsupplements the blood with a healthy supply of alkalineminerals found in nature. In an in-house urine study taking the equivalent of 3ACID √ Check caplets with the Alka-Myte® formulaexperienced an average of 53% decrease in urine acidin five days.