Enjoy Mrs Stewarts Liquid Bluing (12x8Oz). Whitens white clothes safely. Non-toxic. Bio-degradable. Why bluing? White fabric 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. So many other uses! Use Mrs. Stewart's Bluing in swimming pools, bird baths, for white hair and pets, for cleaning crystal and glass, and more!. Note: description is informational only. Please refer to ingredients on the product before use. Please address any health or dietary questions to your health professional before using this item.