Brighten colours and penetrate stains with help from Nellie's Oxygen Brightener. Discover the power of oxygen, utilizing this product to strip away dirt, grit and grime. The chlorine-free formula is colour-safe, septic-safe and even environmentally-friendly (it’s biodegradable, like the rest of Nellie's products). Nellie's Oxygen Brightener boasts hypoallergenic ingredients, including: Sodium Carbonate, Sodium Precarbonate, Primary Linear Alcohol Ethoxylate and Sodium Sulfate. Nellie's Oxygen Brightener is Non-toxic, phosphate free, and contains NO SLS, SLES, Gluten or GMO's. *Not for use on wool, silk or leather.