You can use them for hand washing clothes, which can be especially handy when travelling.
They work well on many types of stains and are good for pre-treating difficult stains.
Hard bar laundry soaps are highly concentrated, so you only need to use a small amount.
Do not use a laundry soap bar in the washing machine as it causes high foaming levels.
Laundry soap bars are slightly alkaline, so don’t use them for wool, silk or linen fabrics or on fabrics that are not colourfast.