How long will a tube of Triluma last if in the fridge?

This all depends on how large and area you are using the creams. For example, Melarase cream has 60 gm and you are supposed to apply 1 gm per day, for 60 days. Best, Dr. KaramanoukianLos Angeles

Well over a year. The tube itself is designed to protect it from light. Keeping it in the fridge ensures longevity. For compounded prescriptions its marked 30-90 days, depending where it is made, but in reality it last much longer. You will know when it is expired when it changes colour. Dr Davin Lim. Brisbane. Australia.