Cleaning my Leather Jacket

I bought my leather jacket many years ago. It is a black jacket I like to wear on colder days. I never thought about cleaning it until very recently, when I noticed that it does not look as good as it used to. Maybe it is time to get some leather cleaning products? I do not want to use water only to clean my jacket because I do not want to risk damaging it that way. It is worth a lot of money to me and I would not want anything bad to happen to it.