What humidity is best for a complete shed?

Hi all,
Since Wanda is coming into shed and hasn't had a complete one yet. Temps are okay, humidity is 60%-65% at the moment and when we notice her start to dull we move her water bowl over to her hot side and the humidity goes up to about 70%. What humidity is best? Are there other factors as to why she isn't having a complete shed?
Thank you!

Well, first try getting a high humidity substrate and then misting it as the percentage falls and the substrate dries out. Make sure the animal is healthy as well. Maybe try using some "press and seal" over the top of the enclosure is another way to raise the humidity. :) 70% should be a good target humidity percentage.