Was looking at superdrug online and came across this offer, which I think is rather good! £9.99 for 1 or £6 for 2. They also have other 2 for £6 on selected Dove Advanced Hair Series starting from £5.99 so worth having a look. Free delivery with your beauty card.
Dove Pure Care Nourishing Treatment Dry Oil 100ml £9.99 each or 2 for £6 @ Superdrug