Spotted this is my local sainsburys earlier and thought it was not too badly priced for the new style bottles now on sale for persil. They are normally £9.99 but they were on an introductory offer of £6.65 for the large 54 wash size bottles. It was for all types of the liquid.
I like persil but was put off by the new bottles with the bigger price tag, however i feel there will be a few of these introductory offers cropping up soon at the big supermarkets, so was worth a go at this price !!!.
Hope it helps someone !!!