I HAVE BEEN USEING MY HOME MADE COLLOIDAL SILVER IN MY DOGS WATER FOR 12 YEARS NOW, AND MY WIFE DID NOT LIKE MY YORKER'S BROWNISH TEETH. SO SHE HIRED A FREE LANCE DOG DENTIST TO SCRAPE AND PLAIN HIS TEETH. NORMAL PRICE WAS $300. THE LADY CAME OUT OF THE ROOM AND ASKED WHAT WE FEED THE DOG? WE TOLD HER, CANADAE DOG FOOD, SHE ASKED IF WE BRUSH HIS TEETH? NO I SAID. THATS YOUR JOB. THIS LADY SAID WHAT KIND OF WATER DO YOU USE? WE USE ALKALINE WATER FROM OUR WATER FILTER, SHE KEPT ASKING QUESTIONS, AND THEN I SAID WE PUT COLLOIDAL SILVER IN THE DOGS DISH EVERY DAY FOR 12 YEARS WHY? THIS LADY SAID SHE NEVER SEEN A 12 YEAR OLD YOURKEY WITH SUCH NICE TEETH, AND SHE SAID NO DETERIORATION ON THE GUMES OR TEETH ? SHE WAS SO PUSLED. SHE SAID I AM GOING TO ONLY CHARGE YOU $100.00, SHE SAID HE HAD SOME BROWN COLOR ON HIS TEETH BUT NO DAMAGE TO TEETH OR GUMS? BOTTOM LINE. USE CS IN YOUR DODS WATER, IT WILL SAVE THEIR TEETH. THIS OLD DOG LOOKS LIKE A SHOW DOG NOW. PS SHE WANTS TO TELL PEOPLE WHERE TO BUY SOME CS AND SHE BOUGHT SOME FOR HER DOG, & I TOLD HER IT WORKS FOR PEOPLE TOO! SHE SMILED, GUESS IT WAS TOO MUCH KNOWLEDGE AT ONE TIME ?