Soap nuts (actually dried fruit cases rich in saponins) are a completely natural and non-toxic laundry soap. Use 4-5 tied in an old sock for 3 or 4 washes, then compost. Kind to delicate fabrics and natural dyes, kind to skin, kind to the planet.
Soapnuts can also be soaked to make a multipurpose cleaning solution for use around the home.
Choose 100g to try (25-30 washes) or 300g (around 90 washes) in a GOTS-certified cotton bag.