My first one was about "Royal Jelly"
I chose to use a clear vial. It tasted bad, and it was "sensitive to sunlight"
I'm guessing I should have used the dark vial instead.
I had this event again...and I used the dark vial. Here's the result:
"(Villager name) selects a dark vial from the lab and heads off to obtain a sample. Once in the hut, she gets a banana leaf and spreads the jelly over the leaf. Yummy! Not only does the strange jelly taste delicious, but she also seems to have lost that cold that has been bothering her for days."
I don't believe she was sick before this event, and there was no noticeable change to her stats after.