Liquid vs Powder Laundry Detergents - Which is Better?
3/10/2019·More About Powdered Laundry Detergent. Powdered detergents, aka washing powders, were the first types of soap that people used for their laundry. By the time liquid formulas came to the market, they had already been used for many years. One of the first mass-marketed brands was Rinso, a type of soap powder that was released in 1908.