I saw your post when buying Mesosilver. I've used it with excellent results. It's known to be the best antibiotic, better than drugs for infection.Mesosilver will not turn your skin gray. It's tea-colored.Some so-called "colloidal silver" comes in a dark bottle, but the liquid is clear and will turn your skin gray. For liver health, get rid of metals in your body-mercury,etc. Do a liver cleanse. I did one and got a lot of stones out of my liver. It requires a 4 day fast. Get a bottle of "Ortho-phos" drops(cheap for 2 cleanses).The 1st day,eat only raw fruits and veggies & drink water.The 2nd day, use 90 drops of ortho drops in a quart of pure apple juice,(not from concentrate) 3rd day:eat greasy breakfast(bacon,eggs)At night,drink 1/2 c grapefruit juice w/1/4 c olive oil. Hope this helps.