Wow, I really didn't realize that this one was soo hard. I have posted two additional clues within the spoiler, the first one to guess right will receive the points. I am only doing this because I read the clues again and they seem to be slightly misleading. I wouldn't feel right not giving you guys a fair shot. Ready, set, go!
My predecesors were sharks teeth, flint, and clam shells if you can believe this. My usage was predominately for men, but my time has passed. Newer forms of me are less elegant and really EXPENSIVE. I work well with cream. Watch your throat. What am I?