I have collected all four ingredients and the game took note of it and told me to find a mixer, and that part of the quest has a checkmark on it. Yet when I give it to Sheeriku she still tells me I'm missing some ingredients. :(

EDIT: So it might be worth mentioning that I am playing with an old save from 0.62 so that might be the cause...

EDIT 2 : Sooo I replayed the game from the start and it does seem like the problem was due to using an old save. It works just fine :)

Where did you find all the stuff at for the elixir of life quest?

where the hell did u find last 2 items? from what i read it is old version where  u cant get all items
i was everywhere and i didnt find Sin of Man