I asked about a gel & found out it was the L'OREAL Studio Line Indestructable Gel & someone paid £3.25 for a 150ml tube from Wilkinsons.
I wanted to try it so went to buy some & found it along with the Wel look & Extream hold type in Bodycare for £2.89 on a BOGOF offer.
So it's cheaper & you get a free one as well.
I couldnt find a website so I guess it's only avaliable instore.
Edit - it's in super drug for £3.99 on a BOGOF as well so it alot cheaper