Do I still need to use a bleach whitening detergent with Koh Universal Laundry Liquid?Updated 8 months ago

Typically bleach based whiteners are used to bleach back the whites that have become dulled and grey over a number of washes as the textiles reabsorb dirty water during the wash cycle, Universal Laundry Liquid protects whites from this reabsorption of dirty wash water meaning bleaching agents are no longer required.