20 (23) Persil
: £227.4m +8.4%
Launch: 1907

Small and mighty, says brand owner Unilever. Well, Persil’s sales were certainly mighty in 2012, especially considering the pressure it was under from P&G’s Olympic campaign for rival Ariel. Following a major relaunch two years ago, Persil was given another big tweak on the innovation front last summer with the addition of new Wash Booster technology, sold as a way for shoppers to get more bang for their buck by removing tough stains in quick washes.