Sapindus mukorossi and Sapindus Trifoliatus, the soap berry trees.

Washing with soapnuts is 100% natural. Use the husks of the soap tree to wash your clothing.

Soap Nuts are actually not nuts, they are a shelled seed or berry - it's the shells that we use. They grow wild in Nepal and India and are a natural source of high quality Saponin.

To use them you take about 4-5 shells and put them in a draw string cotton bag.
Throw the bag in the washing machine drum with your dirty washing and set it going. Soap Nuts wash effectively in warm water.

They are odorless so if you want fragrant washing then add a few drops of an essential oil of your choice to the bag.

Soap Nuts contain no bleaching agents and no optical brighteners - so if you like your whites dazzlingly white you might want to add a laundry bleach.