NLC pots nearly useless? Monster Crystal/Recipe/material farming?

Another good thing to note with herbalists doing the part time job is that you can randomly get recipes as the special bonus reward for it. From what I've gone through, it won't include the very rare or Lv 10 recipes. However, they do include the recipes for 2k MaxHP and giant potions. I've gotten both of them myself several times. It's still completely luck and random based for you might not always get a bonus reward and/or the specific recipe you're looking for.

Health boost recipes are pretty cheap in the FM here. I think probably because it's mostly used at higher leveled places/bosses for an added insurance for survival and nowhere else that makes it cheap and slow to sell.