Is my garment sensitive to fabric washing oxygen bleach/perborate?
Some laundry products, such as OMO Handwash, contain colour-safe oxygen bleach that is specially designed for excellent stain removal when washing whites and colours. This is different to household bleach which is chlorine-based and can easily damage colours. But some items are sensitive to colour-safe bleach, and their care labels will probably be marked "Do not bleach".
Find out more about bleach care labels:
If you are unsure whether your garment is sensitive to colour-safe bleach, try the following test:
Make a paste with OMO Handwash and water
Place a small amount on a part of the garment that doesn't normally show (e.g. inside a hem) and leave overnight
Remove the paste carefully
If any colour is lost, the dye is not stable and the garment should not be soaked or washed in a product that contains oxygen bleach