It would be possible to attempt, yes! More information about these holding cells and the specifics of how "trials" on Ai'tuoh work will be available in the future, so we're going to have to apologize for being vague for now. If you have further questions, we'll do our best to answer them as more situations arise!

No aloe was found on Ensō, but there some witch hazel was located on Monsun; if Jullien gets in touch with those who found it, that might help in a pinch. Alternatively, a request to the Storyteller could always be made to supply him with the plants in question, or something similar!