Eco Nuts® Soap Nuts (seen right) are a berry shell that naturally contains soap. They grow on the Sapindus mukorossi (Soap Berry) tree in the Himalayas
The natural soap found in these berries is called saponin. Saponin is a natural cleaner that works as a surfactant, breaking the surface tension of the water to penetrate the fibers of your clothing, lifting stains from the fabric, and leaving dirt suspended in the water that is rinsed away.
Eco Nuts Soap Nuts are gentle on both clothes and skin, making them ideal for those with sensitive skin, eczema, allergies and psoriasis. Because they are so mild, they are perfect for baby clothes and even cloth diapers. All-Natural Eco Nuts Soap Nuts are also great for septic and grey water systems. Unlike commercial soaps, that have artificial foaming agents, soap nuts do not produce lots of bubbles or foam. While commercial detergents and soaps have marketed heavily around that visual, foam simply is not an indicator of cleaning power.