The key to effective Electrolysis is the Electrologist and their knowledge of beard hair removal and their skill in effectively treating the follicle. I have spent many hours "in the chair" and a lot of money on electrolysis to remove a very heavy beard. I have been treated with all three modalities (Galvanic, Thermolysis and Blend).
My experience (in time order):
Thermolysis - Bad operator, damaged the skin on my Neck! (Portland, OR)
Galvanic - Very slow but effective, lots of swelling. (Silicon Valley, California)
Thermolysis / Flash Thermolysis - Not very effective, Highest hairs treated per hour, but most of the treated hair came back. (Portland, OR)
Blend - Most effective and much faster than Galvanic, very few (if any) hairs come back after treatment (Beaverton, OR).
The most cost effective for me continues to be Blend with an Electrologist that really understands how to achieve the most effective treatment while moderating the pain.
I started out with a very heavy beard (I had to use serious beard cover makeup when I started). I now have a reasonably sparse beard that is about 70% grey and 30% black and can use Mineral powder makeup.
Don't be afraid to try another Electrologist, The best ones will spend time to find the best settings for you that is fully treating the hair with the least pain, they will adjust the settings and the change the probe size as they work on different hair sizes and areas. If they are not, they don't understand the process well enough (or are lazy).
Under-treatment is at best a dis-service, at worst it is a rip-off.
A great Electrologist is worth traveling to. I currently go to Transformations Electrolysis.
-Cindi