We recommend Salon system or Hive brand

https://www.ellisons.co.uk/salon-system-eyelash-tint-starter-kit.html

OR, https://www.salon-services.com/beauty/eyelashes-and-eyebrows/eyelash-and-eyebrow-tinting/salon-system-lash-tint-starter-kit/548579.html#q=tint%20kit&lang=en_GB&start=1

You will also need tweezers

https://www.salon-services.com/search?q=tweezers&lang=en_GB