Everything about the James Read Tan Glow 20 Tan Mousse (£30) is fast. The formula — which feature a colour guide so that you know exactly where you're applying it — dries down in just 60 seconds, meaning you don't have to awkwardly stand around half naked whilst it dries. The golden glow, on the other hand, develops in just as 20 minutes, although the longer you leave it on, the bronzier your fake tan will become.