As a beauty therapist who does a lot of electro including blend I guess I should know why blend is more expensive. I know why and how they are different, but not why the prices alter so much, can anyone help?
Sorry you guys in the states probably have no idea what I am on about, in the uk we call thermolysis - short wave diathermy, your way is def. less of a mouthful 
Prices are usually the same for both here. Thermolysis gets more hairs in a session, but is generally considered less likely to be permanent on any give hair, where blend treats fewer hairs, but is generally considered more affective for permanence. So it’s a trade-off.
If there is a difference in price where you live, (“blenders” charging higher rates than “flashers”)I expect it is because blend is more painstaking for the practitioner. One not only has to make a perfect insertion, one must hold that insertion in place for seconds at a time while staying as close to still as possible. And when it is all over ,there are fewer hairs removed, but those that are, are more likely to be gone for good.
So the practitioners may be charging more both on the basis of higher efficacity, and higher cost to their body when performing the treatment.
In my area we charge the same wheather you receive Blend, Flash but some in my area charge more for multiple needle which is understandable, however, I use mostly blend, but…there are always the areas and the people who flash works best on and I have those clients. Your right blend takes longer but I find that I have gotten great results on clients using it. Multiple needle galvanic works great to but not to many people want to take the time to have it done because everyone wants their hair gone YESTERDAY!
Is Thermolysis effective? Thats the type that Lucy Peters uses and I dont want to waste my time if its not effective.
Thermolysis and Blend both destroy the follicle, but using different methods:
Thermolysis is a way in which heat is created at the tip of the needle probe. To be effective, the tip needs to be very near the follicle’s blood supply. Get a bad insertion, and you get a ‘miss’ or a ‘near miss’. The follicle isn’t completely destroyed.
Blend uses a direct current (DC) to trigger a chemicle reaction within the follicle - producing a substance called nye. Then a small amount of alternating current (AC) heats the nye using thermolysis. Nye is very caustic (more so when heated), and it spreads within the follicle so a perfect insertion is not so critical.
Both methods require the hair to be in the growth stage.
Both methods will eventually destroy the follicle.
You’ll need fewer hits on each hair using blend. But the current has to be held on for longer, so you can’t treat as many hairs in the same time frame.
It’s debatable which method is ‘best’ over all.
Personally, I think the risk of skin damage is less with blend.
Blend is good when you’ve only got a few hairs left to clear. (If you’ve got lots of hairs, you probably want quick results - even if that means you end up going back to get the same area cleared more often.)
I have to respond to this. It is Lye that is produced. The salt and water that is in the follicle along with the current form a Lye solution. With the blend what happens is when the galvanic is delivered then the Thermolysis (which is the heat you feel) kicks in forms a lye solution which pools and kills the dermal papilla.
Moe both methods are effective. It is up to your electrologist what she will use. Some electrologist only use Thermolysis, However I perfer to use the Blend I find better results. Again its up to the area, how much to be removed, your tolerance level. I feel that Thermolysis leaves more of a reaction then the blend and I want clients to feel very comfortable about how they look when they leave my office. Good Luck to you.
Oooops - Electro’s right - it’s Lye !!!
Now where did I get ‘nye’ from??? 
(I can’t even claim a typo!!!)
Of course, blend is more expensive in the long run because it takes more time, and one is paying by the hour, after all.
you’re answering a question from 2002 James?
We have lots of information on this site, and too many people NEVER read the archives, and just ask the same question that is answered 100 times on here. You got a problem with bumping up the places where the information has already been given?
Ahh, but a lot of us have problems being able to correctly work the search function. Or at least work it in an efficient manner.
got it! 
jes, all you have to do is click on advanced search and expand the search years to 3-5 years etc, so you see everything, not just posts within the last week.