Answer:
There is one in every corner and two in every room.
Handy when you need to measure something or run a kingdom.
It is a common and favored clothing material among biker gangs and superheroes.
As strong as love, more dangerous than cancer.
It's tough as nails, Or soft as snow. People use it for their rink, Some just put in their drink.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?