bunch of essental herbal blend?

[Kararas]

I did the quest, and as a reward from the shaman I got this thing (bunch of essental herbal blend) what is this? The skill herblore does not work on it and I did not find information for what it can be used.

[JP_Finn]

Multi purpose healing concoction. Another similar is “bear strong herbal blend”

[PALU]

As mentioned, they're healing herb mixtures. I believe they're good for wounds treatment (that's what I use them for, apart from occasionally eating them accidentally [with no ill effect]). The name is generated, and even if the name is the same they don't stack, but as far as I know they're functionally equivalent.