If you combine a classic Colorance shade with a Colorance Cover plus, use only Colorance Cover Plus Lotion, always in a 2:1 ratio (e.g. 40ml Cover Plus Lotion 10ml Colorance Cover Plus color 10ml Colorance color).
The "8BV Goldwell Colorance Can 120ml" is ideal for those who want an easy, convenient, and concentrated hair coloring solution.