Being a novice with colloidal silver, what I did was put one tablespoon in her drinking water. Then, I would give her an additional tablespoon three times a day. My being this meticulous was not necessary. Just pour a goodly amount in your pet's water every day. They cannot overdose. If the pet is in good health, a teaspoon in their drinking water will keep them healthy and happy. However, I put a tablespoon in Misty's drinking water, I guess to add that extra oomph.