Electro is painful but I don't know if it is more painful on HRT than not. I changed my hormones about a year or so before I began electro. What I do know, (after listening to my electrologists for over 3 years now) that electrolysis takes far longer if you are operating on T instead of E. T makes the hairs, especially facial hairs, stronger and more resilient to being zapped.

Anywho, regardless of any pain, electro is super worth it! I have not shaved my face in over a year and that feels absolutely amazing!