Hi there, I posted the same thing last night. I've been using it a couple of years after seeing it recommended on here. I think I was paying about £15 but the price is now ridiculous. Keeping my fingers crossed that one of the S&B experts can help.
It’s not being discontinued afaik , in fact they just creates another moisturizer/serum line recently (the purple bottles lol). L’Oréal just purchased cerave this year so a lot of people are hoping they’ll make it more accessible in the UK. I’m on the us so I know that’s not a big help but it’s definitely still being made/sold by the company! Check reddit, they always have good info/dupes