Based in Harlow, Essex, the World Anti-Doping Agency accredited laboratory will analyse 6,250 samples throughout the Olympic and Paralympic Games, more than at any previous Games.
The facility will be operated by leading anti-doping experts from King’s College London and supported by scientists from around the world.
LOCOG Chief Executive Paul Deighton said: 'Working with one of the world’s best pharmaceutical companies and one of the country’s leading universities, we have been able to create a facility to successfully and efficiently process 6,250 tests during the Games which has never been done before.
'As we unveil the anti-doping lab we recognise the importance of a robust testing system and continue to show that London is ready to stage a successful Games.'