Slaim for Kids 4 color set (yellow, Green, Pink, Blue, Blue, Black, Orange) The active ingredient in most slime recipes (with the exception of edible slimes) are derivatives of borax, a natural mineral, such as sodium tetraborate and boric acid. Borax is actually used as a soap and a disinfectant in many products. For order anything logon to www.orderonclick.com or download the Electrolife app now