Are Soapnuts safe for my colored laundry?
Soap nuts also preserve the colours of fabric better than commercial detergents. Whites may become slightly grey after extended use but this effect can be mitigated with the use of an oxy whitener (sodium percarbonate) which is also safe for the environment. Sodium Percarbonate is a biodegradable laundry product which breaks down into water, oxygen, and soda ash.