Daz is the name of a popular laundry detergent on the market in the United Kingdom and Ireland. It is manufactured by Procter & Gamble and is lower priced than P&G's main brand, Ariel. Aggressively marketed, it is associated in popular culture with the "Daz Doorstep Challenge" series of commercials, which saw various 'hosts' including Danny Baker, Shane Richie and Michael Barrymore surprising house occupiers at the door and asking them to put Daz to the test against a rival detergent. The advert was famously spoofed by Dom Joly in the British sketch series Trigger Happy TV where Dom would knock on doors presenting the 'zap mega' challenge. He then ran from the scene with the crew in tow, arms akimbo, legs flailing while the occupier went to retrieve a white garment. The occupier then returned to the door looking bemused. The advert was also spoofed in a John Smith's advertising campaign featuring Peter Kay. Recent TV commercials are set in an obviously fictitious "Cleaner Close" soap opera.
Daz also makes "Daz tablets" and Daz in liquid form.
From 2002, Daz began a series of soap opera style adverts called Cleaner Close. Some of these featured where a new packet Daz or prize give-away as part of the plot, such as a character who either hid money in Daz packets or donated money to Daz in their will.
Other episodes have a character who do not use Daz which causes them problems, which are solved by a character who uses Daz. Cleaner Close seems to be a parody of Brookside Close or Eastenders. In most of the adverts it stars ex-soap stars and they are sometimes portrayed as a similar character to the one they played in their original soap.