Our Ultra dark self Tanning Mousse is a green based self tan. This is the most popular self tan base colour and it looks great on most skin types, giving it a natural tan finish. The only thing turning green is the bronzer, which is a temporary colour, this is what is washed off in the morning after you've allowed your tan to develop. The green tone is the initial colour guide application & not the final result. The colour base can be more apparent in lighter skin tones but will develop into a lovely golden bronze.