I randomly picked this up in Boots as it's a brand new product and was on offer for £19.96. I never usually pick up things randomly without knowing if they're actually good or without reading reviews online beforehand so I'm not entirely sure why I picked this up and wish I didn't even bother...
It's basically a 5 day programme thats meant to make your teeth up to 8 shades whiter and includes 10 prefilled ready-to-use trays which have the whitening gel already in them (as seen below)
You apply a tray to your top teeth and a tray on your bottom teeth and leave them to work their 'magic' for 20 minutes. The gel will need to be moved around a little bit before putting them in your mouth as there was more gel on one side than the other (must have been the way they were stored when packaged) so I used something small like the end of my tweezers to distribute the gel evenly across the tray.
I used the trays everyday for the 5 recommended days and my teeth didn't really go '8 shades whiter' as they claim, I'd say around 1-2 shades whiter.
I'll be sticking to my trusty Crest White Strips from now on as they work out cheaper and work amazingly well. I totally regret wasting money on this product and wouldn't recommend to anyone as in my opinion it's like something you'd find in the pound shop! Disappointed with Boots for putting this on their shelves BIG THUMBS DOWN!