100ml bottle is a good size to keep in your medicine cabinet.
Colloidal Silver 15ppm 100ml with dropper is our smallest bottle in this format. It comes with a handy dropper that is excellent to use in those sensitive place like your eye or ear.
Colloidal Silver 15ppm 100ml with sprayer is our biggest bottle in this format. It comes in a handy spray pump dispenser and one bottle gives approx 600 servings.