Heya, I'm curious as to the answer on this also. I originally studied in the US and my insurer has agreed to acknowledge my Esthetician license which covers electrical facials, LED light therapy, advanced peels as well as other qualifications I've obtained since living here. However, I imagine when you did electrical facials you would have used a steamer/ozone machine? If you are unsure I'd look at the books you used to study at the time or even reach out to where you studied to ensure this was a part of the curriculum. I imagine you could use this as evidence to satisfy your insurer.