None of those are best.....in the hands of an incompetent electrologist. All of those are best.....in the hands of a competent electrologist. Electrologists usually "specialize" in the modality and technique that works best for them - or in the modality and techniques they were trained in.
I didn't see a picture of your upper lip, but from the photo of your chin, it might take about 10 minutes for your chin and, depending on the amount of hair on your upper lip, 10 to 30 minutes for that area with thermolysis. If you have not ever tweezed these areas, then you "might" have monthly treatments.
The length of time between treatments? I like to treat the hairs before they get a chance to shed.
Barbara Greathouse, CPE
Kansas Licensed since 1980
Live by the 4 Agreements: Be impeccable with your word. Don't take anything personally. Don't make assumptions. Always do your best.