For sure, on both counts!
The only chemical I didn’t link to at Duda Diesel is their EtOH. The links above for NaOH, KOH, and Iso are all for Duda Diesel 
And yeah, these strongly basic chemicals solutions aren’t anything to take lightly. Doubly so for the dH2O + base (KOH or NaOH) solution (prioer to adding EtOH or Iso) while preparing the base bath solution, which comes in about 20% w/w base. 
:
Full PPE is a must, including long sleeve shirt, shoulder length nitrile dipped gloves, pants, and safety goggles (not safety glasses) with at least an N95 face mask, but ideally a half-face respirator (an organic vapor cartridge [#60921] with an N100, R100, or P100 particle filter).
Just ask Edward Norton:
Edit:
I want to mention that anyone who wants to use this method must understand what they’re doing to avoid injury. There are many usage points I didn’t cover because I was only writing about base bath solution preparation, please read Dr. Choi’s complete SOP (it includes additional steps I didn’t cover, PPE, etc.). Also, I should point out that disposal of the base bath solution requires basicity neutralization with a dilute solution of weak acid until you reach a pH of 7-8.