Nellie's Oxygen Brightener Tin. Nellie's All-Natural Oxygen Brightener is ideal for adding some brightening stain-fighting power to your loads of laundry. This powder is color safe, chlorine free and biodegradable. It cleans with natural power only. You can also use All-Natural Oxygen Brightener powder to pre-soak or hand-wash delicate or heavily soiled items. It also makes a great carpet spot remover and general stain remover (solution mix directions are included on packaging). Made in Canada.