Jurema is indeed good for the skin. The product is known as
tepezcohuite, which is incidentally one of the names (with náhuatl roots) of Mimosa Tenuiflora/Hostilis in Mexico.
The toasted tree bark of MH had been traditionally used by mayans for treating skin injuries and burns. It shows good antibacterial and regenerative properties, and it has continued to be used in Mexico. I remember reading a note about its hospital use to treat the victims of the 1985 earthquake.
This was mentioned here in the Nexus in
this thread.
Of course, nowadays you can easily find "tepezcohuite" products in health & beauty stores. And yep, most often creams and soaps.
"The Menu is Not The Meal." - Alan Watts