Where to buy Crest whitening strips?

[Juupiter]

I’ve seen these recommended on here loads over the years. But where can you buy them? As far as I can work out they’re US only due to regulations - is there anywhere you can buy them from the U.K.? There’s some on eBay for £8.95 but I’m presuming they’re fakes?

Cali white.

Although the last time I looked they were out of stock

eBay- but you have to be really careful. Some show the crest photo but when you read the small print they are fake ones. You need to spend a bit more money to get the real deal- I think I paid about £25. Would post link but just checked and the ones I bought aren't listed anymore.

i've bought loads on ebay over the years without any issues