17 Hide Away Concealer Stick is £3.99 which can be bought from most Boots store that sell makeup. It is in a plastic wrapper and comes in about three skin shades. I have medium and it matches my skin perfectly. I prefer sticks as they are easily applyable and it doesnt involve using fingers (which could have a lot of bacteria and stuff on and could cause spots).
I would give this concealer a 7/10 because I really like it, and will be purchasing again when its run out! Would definitely recommend it.