SOLVED. YA Fantasy and Romance about an alchemist who is participating in a challenge to save the princess by making a potion and regain her family's reputation, during this challenge she falls in love with the son of a rivaling family [s]

[Astraia]

The story is about an alchemist who is participating in a challenge to save the princess by making a potion and regain her family's reputation, during this challenge she falls in love with the son of a rivaling family. I think the name of the girl is Sam but I am not sure.
- POSSIBLE SPOILER -
the final ingredient is unrequited love and the love potion ends up being blue

[Andria]

Madly is first in a series about a teenage alchemist named Samantha (Sam) Kemi.

[Astraia]

Andria wrote: "Madly is first in a series about a teenage alchemist named Samantha (Sam) Kemi."

That's the book I was looking for, thank you :)