I’ve just googled and found some microcell on amazon and ebay as well as their own website microcell UK that have a limited choice and everything (the 8 items) are half price £7.48 each and free delivery.
I buy mine from Amazon, fab price you found! I have sensitive nail beds so need their half strength but if you have normal nail beds you can have strong talons in less than three weeks with religious application, so much so I filled a skip without a break!
I ordered the colour one from them when I posted this and now disappointed - it chips off in a couple of days on me. There was no original formula there only the colour.
That’s a shame Marina, Microcell 2000 Nail Repair is a fab product, apply one coat for two days, third day remove and apply new coat that day and next and then repeat until result you want. Mine never peeled, surprisingly!