KTC is a lot cheaper. Found the tub on mysupermarket & was going to post a link but I'm new, so I'm not allowed to post links for 7 days. It was Ј1.69 for 500ml tub from Tesco & Ј2.19 from Asda. It's about Ј1 to buy it in a bottle from an Asian shop.
Thanks for the info about Aloe Vera, Davo. I'd seen it mentioned on another thread. That person used the capsules so I bought some from Holland & Barratt. I saw that gel you linked to above, but it said external use only, so I thought I'd better go with the capsules since that was what I went in there for. Wish I'd seen your post before then because I'd have been reassured about trying that one on my fissure.