255mcg of selenium per serving (464% RI) Made using only pure minerals and de-ionised water Rapidly absorbed and 100% bioavailable Made from 100% natural minerals from the earth Easy to use, simply add a few drops to water KIKI Health's Ionic Selenium Liquid Concentrate is a pure, concentrated form of ionic Selenium mineral solution. Its naturally occurring ionic minerals are designed to restore minerals at the cellular level, bringing about a state ofmineralibrium,or optimal tissue mineral balance within your body. As this mineral is in a liquid form, there is no digestion required and is 100% bioavailable. Using it is as simple as adding a few drops of Ionic Selenium Liquid Concentrate to a glass of water. It provides 255 mcg of Selenium per per serving (464% Recommended intake) Selenium supports normal immune function, helps maintain healthy hair and nails, supports normal thyroid function, and contributes to the protection of cells from oxidative stress.