Can someone explain to me the difference between regular poison damage when creating potions and concentrated poison damage?

Someone's got to know this.

Yes, you can poison any weapon twice.

I should clarify. I'm not talking about the perk. I'm talking about how some poisons say "concentrated poison" and some just say poison. It has to do with creating poisons of ravage health. I just don't understand the difference.

Are you making the poisons yourself that say this? I know the ones you guy say it, to my knowledge it was just a way to know what did more damage with store bought poisons.

Yes. I am making the potions myself that say this. If you make a poison that does "ravage health" it says in the description after it is made that it does "x" amount of concentrated poison damage.

I think that's just the description of it.