Payday lenders are facing new rules on how they advertise under a Government clampdown to make sure that firms do not take advantage of people who are already drowning in debt.
The plans include limiting the number of adverts firms are allowed to put out per hour, the times they can advertise and forcing them to make sure that interest rates are clearly displayed.
The Government will work with the Advertising Standards Authority and the industry to make sure advertising does not tempt consumers into taking out payday loans that turn out to be unsuitable.
The clampdown emerged as the trading watchdog prepares to publish the results of a wide-ranging probe into the payday lending industry.
The Office of Fair Trading (OFT) has carried out spot checks of 50 major lenders and obtained information from all 240 lenders in the market.
The regulator said in its interim report last autumn that formal investigations have been launched into several firms over their debt collection methods.
Charities have reported rocketing numbers of complaints about payday lenders from borrowers. The Money Advice Trust (MAT) recently said that complaints about payday loans have doubled year-on-year to reach a record of 20,000 across 2012.
The charity warned that "something is drastically wrong" with the way that expensive loans are being dished out to people who cannot afford them, with lenders often rolling over loans.
New regulator the Financial Conduct Authority (FCA), which will oversee the consumer credit market from next year, has committed to prioritise tighter rules on payday lending that could come into effect from April 2014.
The FCA's rules will be binding and if they are broken the regulator will have tough enforcement powers including imposing unlimited fines and the ability to claw consumers' money back.