I use and make my own Colloidal Silver. It works and I have not turned blue yet! I've used it on cuts, scrapes, burns, bites and everything has healed within 2-3 days. I put drops in my eyes. My sister uses it as well. She also puts it in her eyes. Her optometrist told her that her eyes are the best he has seen in a long time. Colloidal silver also has the ability to promote production of your own natural stem cells hence the rapid repair of a cut or other. I was introduced to Colloidal Silver by a medical doctor who recommended it to his patients.