Answer:
Everyone has me except for a few. You may not be able to identify me but I can always identify you. What am I?
I am owned by every man though my length differs. Their wives uses me after getting married.
The more there is the less you see.
My first is in riddle but not in little. My second is in think but not in brink. My third is in thyme but not in time. My fourth is in mother but not in brother. My last is in time but no t in climb.
I am a daily ritual involving using a metal tool on the body
It's what light turns into in the night