Borax is a naturally occurring mineral, a chemical compound of the element boron, also known as sodium borate, sodium tetraborate, or disodium tetraborate. It is a soft, white, many-sided crystal powder that dissolves readily in water and aids in stain removal, sanitation, and even repels insects. Borax can irritate the skin and eyes, and it can be dangerous when inhaled or ingested. However, borax is generally safe for humans, as the average person doesn't come in contact with enough to be harmful. But it's still best to handle it with care. Borax can make an excellent laundry booster. It whitens whites, brightens colors, softens hard water, neutralizes odors, and helps to remove stains. Many laundry detergent formulas contain sodium borate. Borax can be used to: - Pre-soak laundry to remove stains/odors - Boost detergent cleaning power - Make your own laundry powder - Remove stains from sinks and laminate countertops - Freshen and unclog kitchen drains - Remove pet urine stains / odors from carpet - Clean plastic outdoor furniture - Clean the toilet bowl - Remove mold / mildew and inhibit their growth - Remove water spots - Clean the dishwasher - Repels insects Available in 500g or 1kg, packed in paper bags.