Hi; my son could take capsules, thats the easiest way, fill them yourself; take it with vit C and magnesium. If not capsules put it in water with some lemon in it ( 1/8 or 1/4 teaspoon per liter) Or put it in tea or juice. Just dissolve the borax in a spoon of hot water first, then in juice. This because it is slow to dissolve in cold water.