It seems strange that Nick and the gang didn’t try to figure out a better explanation for how they suddenly where able to make the potion. Nick knew Juliette would oppose drinking anything made by Adalind.
Juliette had also told them that she liked what she had become. Nick probably thought Juliette just told herself and others that she liked her new powers as a way of managing her life situation (she had been told it was permanent) and that she would choose to be normal if that really was an option. Nick could not know just how evil she had become or that she was under the influence of Kenneth.
How was Nick going to ensure Juliette would ingest the potion? I don’t know. Maybe have someone like Hank shoot her from behind with tranquilizer arrows and make her drink it while she was asleep? But Nick didn't want to do it by force.
Juliette had also told them that she liked what she had become. Nick probably thought Juliette just told herself and others that she liked her new powers as a way of managing her life situation (she had been told it was permanent) and that she would choose to be normal if that really was an option. Nick could not know just how evil she had become or that she was under the influence of Kenneth.
How was Nick going to ensure Juliette would ingest the potion? I don’t know. Maybe have someone like Hank shoot her from behind with tranquilizer arrows and make her drink it while she was asleep? But Nick didn't want to do it by force.