I order the ASAP Silver in the tube and there is a 36 oz silver biotics that sells for a good price on Amazon. You have to check around for the best prices. It goes by silver sol, silver biotics and other names. Typing in American Labs help. Like I said. . .some charge outrageous prices plus shipping. Be careful when ordering. . .you may think you are getting a deal . . .the bottle looks big. . but it is 8 oz instead of 16 or 32 and same thing with the tube. I think it is 14 oz for the larger size. I give it to the dogs and cats as well. . .look for the uses . . .over 90.
Thanks very much, Maudeen.