Concentrated liquid bluing. Whiten white clothes safely. White gfabric turns yellow or gray with age and repeated washings. Bluing restores the sparkling whiteness. Works on synthetics as well as natural fabrics without harming fibers like bleach can.
Always dilute bluing with cold water in seperate container before adding to wash load. Smalll load-a few drops, large load- up to 1/4 teaspoon.
Can also make a magic salt crystal garden.