Two vials when mixed with water make 32 ounces of Gem Sparkle Ionic Concentrate. Easy to mix and less expensive to purchase and ship are making this version very popular. Gem Sparkle Concentrate DOES IT ALL! Concentrated, odorless, this cleaning solution is an effective, fast-acting degreaser which also removes oxidation and brightens metal to a like-new finish. Gem Sparkle acts as the electrolyte in the ionic cleaning process and can be used repeatedly before it needs to be replaced. Dilution for general cleaning is 1 part Gem Sparkle to 6 parts water. You will find that Gem Sparkle is an economical, effective cleaning agent. Gem Sparkle Concentrate contains no caustic chemicals or ammonia. It is safe to the user and the environment. No shipping restrictions.