Progressive Labs Colloidal Silver offers support for overall health. A 20 part per million concentration that is made from very small silver particles resulting in a very high surface area of silver. Recommended use: Adults take 1 teaspoon daily. Children take 1/4 to 1/2 of adult dose. May be mixed with water or juice, preferably between meals. Shake well before using. Store at room temperature. For larger doses, consult a healthcare professional.