ONE of the alleged 21/7 bomb plotters used a discount card to buy hundreds of bottles of hydrogen peroxide from a hairdressing supplier's at a knock-down trade price, a court heard.

Manfo Kwaku Asiedu ordered hundreds of litres of liquid peroxide at its strongest available concentration and claimed it was for "stripping paint", Woolwich Crown Court was told.

He allegedly visited a branch of Sally's Hair and Beauty Supplies in north London at least four times in less than two months, each time virtually cleaning out their stock of the chemical substance.

He paid in cash every time and got a two-thirds discount by producing a "Sally's Card" loyalty card.

Asiedu is one of six men accused of plotting a series of suicide bombings on the London transport system using an explosive mixture of hydrogen peroxide and chapatti flour in rucksack bombs.

It has already been alleged the co-conspirators in the case bought more than 400 litres of peroxide in the weeks before their attempted attack two weeks after the July 7 bombings killed dozens in London.

Asiedu, 33, of no fixed address, and five others deny charges of conspiracy to murder and to cause explosions likely to endanger life.

The trial continues today.