Technaflora's pH Up and pH Down enable the gardener to moderate and
maintain optimum pH levels. The pH scale is a measure that describes the
relative acidity or alkalinity of a solution or medium. Both pH-balancing
aids are manufactured using the highest-quality ingredients: potassium
hydroxide to raise pH, and nitric acid to lower pH. While ensuring
stringent industry safety standards are met, Technaflora's pH Up and
pH Down are potent and effective in small doses.