Board Thread:Q & A/@comment-4097293-20150226082755/@comment-26235944-20150526035318

86.44.19.153 wrote: 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.

This is a nice theory...but the storage unit was housing all of Catherine's possessions, Adalind's mother. It had been rented by the attorney who had settled her mother's estate, because Adalind had left town.

Elizabeth said she needed a place "untainted by another hexenbiest"...she didn't mention 'Adalind's essence'. She may have been referring to both Adalind and her mother, Catherine.