I feel such a fool! But I'm sure I can't be the only one.
'x2' I read, and thought I was getting 2 bottles of shampoo.
Not the case at all because the 'x'2 is part of the product name and indicates it's 'strength'. A bit confusing for the likes of me I'm afraid.
Setting that aside, this is great shampoo. Carpets come like new, fresh and fragrant.