Woolworths own-brand $1.49 Essentials Laundry liquid was the 'worst' detergent tested with a rating of just 39 percent. Scroll down for video 1. Omo with A Touch of Comfort Inspired Freshness ...

As part of the campaign, children are encouraged to take as many of their empty OMO liquid bottles to school as possible as a pledge for the switch to a cold wash. The empty bottles collected will ...