Board Thread:Q & A/@comment-4097293-20150226082755/@comment-86.44.19.153-20150525224026

Maybe Elizabeth didn't need Adalind's hair because she already had her esence. When they were looking for a place to make the potien she said that the storage unit was tainted by the esence of adalind, so she might just collected the some of that esence somehow and used it in the potion: I'm pretty sure taht the esence would work as well as the hairof even better, and that caused Juliette to turn into a Hexenbiest.