The mascara is by Clinique and is called High Impact Mascara
It's £15 in the UK which is fairly pricey for a mascara but I assure you, it is worth it!
If you're looking for something a bit more affordable, however, in my opinion, this is the second best:
This one is called Great Lash Mascara and it is by Maybelline. It's normally around £5 and is really great quality for it's price. Give it a go!