With oxygen booster! Nellie's All-Natural for Baby is specially formulated to deal with baby's unavoidable mishaps. We have added a concentration of sodium percarbonate for natural brightening as well as the addition of pure vegetable soap. There is no need to add any additional whiteners or brighteners. Nellie's recommends hot water wash only. This well ensure safe sterilized fabrics free of any soap residue that may irritate your baby's skin. Always recycle. HE. Leaping bunny certified. www.nelliesallnatural.com. Why Powder: Liquid laundry detergents are often made up of at least 50% water. At Nellie's we don't think selling water and moving water all over the planet is a good idea. The fact is more cleaning power can be packed into a smaller space using powder. Why Metal Packaging: Iron and steel have been recycled longer than any other material on earth and is one of the easiest to recycle. This makes sense to Nellie. Biodegradable. Non-toxic. Hypoallergenic. Gluten free. No SLS or SLES. No GMO's. Septic safe. Made in Canada.